Basic Question :
(1)Choose the menu path Tools->Administration, Monitoring->System monitoring->User overview. What is the transaction code for this transaction?
(2) What is the transaction code for the R/3 main menu? (The main menu is the first menu displayed after logon.)
(3)What is the transaction code for the menu path Tools->Development Workbench?
(4)If there are three R/3 systems in your current system landscape, how many databases are there?
(5)If an R/3 system has two application servers, how many instances does it have?
(6)What is Open SQL?
(7)What advantages does Open SQL offer over native SQL?
(8)Which part of the work process is used to implement Open SQL?
(9)When is a roll area allocated, when is it de-allocated, and what does it contain?
(10)When is a user context allocated, when is it de-allocated, and what does it contain?
(11)When does the roll-out occur, and why does it occur?
(12)What two things does the tables statement do?
(13)To what does the term default table work area refer?
(14)If the select statement is missing an into clause, where do the rows go?
(15)If a write statement does not contain a slash, is the output written to the same line as the output for the previous write statement or is it written to a new line?
(16)What is the name of the system variable that indicates whether any rows were found by the select statement?
(17)What is the name of the system variable that indicates how many rows were found by the select statement?
(18)What is the purpose of the domain?
(19)What does the data element contain?
(20)To what does the term application data refer?
(21)For fields of type DEC, is the decimal point stored with the value of the field?
(22)What are the transaction codes of the four data browsers. Which one is most commonly used, and which one cannot be used to update data?
(23)What is the difference between a transparent table and a pooled or cluster table?
Showing posts with label ABAP Interview Questions. Show all posts
Showing posts with label ABAP Interview Questions. Show all posts
Friday, July 25, 2008
Dialog Programming Interview Questions(FAQ's)
1) Why do I need to do dialog programming?
Ans: to have your own customized screens and processing
2) What does dialog programming consist of ?
Ans: Screens with their corresponding processing code, Menu , module pool program
3) Difference between the normal report / program and Module pool program?
Ans: Normal report can be run straight away by executing it and useually has a selection criteria – Attributes : 1 online program
Module pool program cannot be run straight away. It first needs to display a screen – attributes : M module pool program
4) What is PBO and PAI?
Ans: Process before output. Code that is executed prior to the display of a screen.
Process after input. Code that is executed after a button on the screen has been pressed.
5) How can I identify which button is pressed?
Ans: “ fcode” attributes of the button. Define the okcode value of the screen (type sy-ucomm)
6) What is the GUI interface to the program?
Ans: The menu bar where you define the ok-codes of the buttons and function keys for the screen. You typically code SAVE, BACK, CANC, EXIT and then more specific codes. CANC (leave to screen 0) allows you to get out of the current screen.
7) What does PAI and Pbo contain by default?
Ans: PBO - MODULE STATUS_0100 - Key / button definitions
PAI - * MODULE USER_COMMAND_0100 - How do you handle thecode behind the button that was pressed
8) If we do not have / give menu bar than what will menu bar have by default?
Ans: Not much -> system , help
9) How many PBO and PAI modules are allowed for a screen?
Ans: one PBO and one PAI
10) In the menu bar can you associate a function key to a button?
Ans: yes
Ans: to have your own customized screens and processing
2) What does dialog programming consist of ?
Ans: Screens with their corresponding processing code, Menu , module pool program
3) Difference between the normal report / program and Module pool program?
Ans: Normal report can be run straight away by executing it and useually has a selection criteria – Attributes : 1 online program
Module pool program cannot be run straight away. It first needs to display a screen – attributes : M module pool program
4) What is PBO and PAI?
Ans: Process before output. Code that is executed prior to the display of a screen.
Process after input. Code that is executed after a button on the screen has been pressed.
5) How can I identify which button is pressed?
Ans: “ fcode” attributes of the button. Define the okcode value of the screen (type sy-ucomm)
6) What is the GUI interface to the program?
Ans: The menu bar where you define the ok-codes of the buttons and function keys for the screen. You typically code SAVE, BACK, CANC, EXIT and then more specific codes. CANC (leave to screen 0) allows you to get out of the current screen.
7) What does PAI and Pbo contain by default?
Ans: PBO - MODULE STATUS_0100 - Key / button definitions
PAI - * MODULE USER_COMMAND_0100 - How do you handle thecode behind the button that was pressed
8) If we do not have / give menu bar than what will menu bar have by default?
Ans: Not much -> system , help
9) How many PBO and PAI modules are allowed for a screen?
Ans: one PBO and one PAI
10) In the menu bar can you associate a function key to a button?
Ans: yes
Performance Tuning Faqs in abap
- What is performance tuning?
- What are steps you follow to improve the performance of
a report ? - what is the role of secondary index in performance?
- what is the role of ST05 in performance tuning?
- what is the role of extended syntax check in
performance tuning? - will join conditions in sql queries affect perfomance? how?
- will sorted internal tables help in performance?
- will where conditions in a sql query help improve
performance? - does select single *.. / select * .. affect performance ?
how?
SAP BASIS LAYER Interview Questions
What are the central interfaces of the R/3 system ?
- Presentation interface
Database interface
Operating system interface
Which interface controls what is shown on the p.c. ?
- Presentation interface
Which interface converts SQL requirements in the SAP development system to those of the database ?- Database interface
What is SAP dispatcher ?
- SAP dispatcher is the control agent which manages the resources for the R/3 applications.
What are the functions of dispatcher ?
- Equal distribution of transaction load to the work processes
Management of buffer areas in main memory Integration of the presentation levels
Organization of communication activies
What is a work process ?
- A work process is where individual dialog steps are actually processed and the work is done. Each work process handles one type of request.
Name various work processes of R/3 system ?
1) Dialog or Online ( processes only one request at a time )
2) Background ( started at a specified time ) 3) Update ( primary or secondary ) 4) Enque( lock mechanism ) 5) Spool ( generated online or during back ground processing For printing )
What are the types of Update requests ?
- An update request can be divided into one primary (V1) and several Secondary update components (V2). Time-critical operations are placed in V1 component and those whose timing are less critical are placed in V2 components. If a V1 update fails, V2 components will not be processed.
What are the roll and page areas ?
- Roll and page areas are SAP R/3 buffers used to store user contexts ( process requests ) . The SAP dispatcher assigns process requests to work processes as they are received. If the work process is unavailable the process requests are queued in the roll and page areas. Paging area holds data from the application programs. Roll area holds data from previous dialog steps and data that characterizes user.
What is a Spool request ?
- Spool requests are generated during dialog or background processing and placed in the spool database with information about the printer and print format. The actual data is placed in the Tem Se (Temporary Sequential objects).
What are the different database integrities ?
- Semantic integrity
- Relational integrity
- Primary key integrity
- Value set integrity
- Foreign key integrity and
- Operational integrity.
- Presentation interface
Database interface
Operating system interface
Which interface controls what is shown on the p.c. ?
- Presentation interface
Which interface converts SQL requirements in the SAP development system to those of the database ?- Database interface
What is SAP dispatcher ?
- SAP dispatcher is the control agent which manages the resources for the R/3 applications.
What are the functions of dispatcher ?
- Equal distribution of transaction load to the work processes
Management of buffer areas in main memory Integration of the presentation levels
Organization of communication activies
What is a work process ?
- A work process is where individual dialog steps are actually processed and the work is done. Each work process handles one type of request.
Name various work processes of R/3 system ?
1) Dialog or Online ( processes only one request at a time )
2) Background ( started at a specified time ) 3) Update ( primary or secondary ) 4) Enque( lock mechanism ) 5) Spool ( generated online or during back ground processing For printing )
What are the types of Update requests ?
- An update request can be divided into one primary (V1) and several Secondary update components (V2). Time-critical operations are placed in V1 component and those whose timing are less critical are placed in V2 components. If a V1 update fails, V2 components will not be processed.
What are the roll and page areas ?
- Roll and page areas are SAP R/3 buffers used to store user contexts ( process requests ) . The SAP dispatcher assigns process requests to work processes as they are received. If the work process is unavailable the process requests are queued in the roll and page areas. Paging area holds data from the application programs. Roll area holds data from previous dialog steps and data that characterizes user.
What is a Spool request ?
- Spool requests are generated during dialog or background processing and placed in the spool database with information about the printer and print format. The actual data is placed in the Tem Se (Temporary Sequential objects).
What are the different database integrities ?
- Semantic integrity
- Relational integrity
- Primary key integrity
- Value set integrity
- Foreign key integrity and
- Operational integrity.
SAP ABAPDATA DICTIONARY Interview Questions
Type of a table or structure
The table type determines how the logical table description defined in the ABAP/4 Dictionary is reproduced on the database. There are the following table types:
transparent table
structure
append structure
For internal purposes, such as storing control data or update texts, there are in addition the following table types:
pooled table
cluster table
generated view structure
Transparent table There is a physical table on the database for each transparent table. The names of the physical tables and the logical table definition in the ABAP/4 Dictionary correspond. All business data and application data are stored in transparent tables.
Structure No data records exist in the database for a structure. Structures are used for the interface definition between programs or between screens and programs.
Append structure An append structure defines a set of fields which belong to another table or structure but which are treated in the correction administration as its own object. Append structures are used to support modifications.
Pooled table Pooled tables can be used to store control data (e.g. screen sequences, program parameters or temporary data). Several pooled tables can be combined to form a table pool. The table pool corresponds to a physical table on the database in which all the records of the allocated pooled tables are stored.
Cluster table Cluster tables contain continuous text, for example, documentation. Several cluster tables can be combined to form a table cluster. Several logical lines of different tables are combined to form a physical record in this table type. This permits object-by-object storage or object-by-object access. In order to combine tables in clusters, at least parts of the keys must agree. Several cluster tables are stored in one corresponding table on the database.
Generated view structure In activation a structure is generated for a view. This structure serves as interface for the runtime environment. It does not generally appear in the ABAP/4 Dictionary.
What is a Data Class?
The Data class determines in which tablespace the table is stored when it is created in the database. What is a Size Category? The Size category describes the probable space requirement of the table in the database. How Many types of size categories and data classes are there? There are five size categories (0-4) and 11 data classes, only three of which are appropriate for application tables:
- APPL0 - Master data (data frequently accessed but rarely updated)
- APPL1 - Transaction data (data that is changed frequnetly)
- APPL2 - Organisational data (customizing data that is entered when system is
configured and then rarely changed)
What are control tables?
The values specified for the size category and data class are mapped to database-specific values via control tables.
What is the function of the transport system and workbench organiser?
The function of the transport system and the Workbench Organizer is to manage any changes made to objects of the ABAP/4 Development Workbench and to transport these changes between different SAP systems.
What is a table pool?
A table pool (or pool) is used to combine several logical tables in the ABAP/4 Dictionary. The definition of a pool consists of at least two key fields and a long argument field (VARDATA).
What are pooled tables?
These are logical tables which must be assigned to a table pool when they are defined. Pooled tables can be used to store control data (such as screen sequences or program parameters).
What is a table cluster?
A table cluster combines several logical tables in the ABAP/4 Dictionary. Several logical rows from different cluster tables are brought together in a single physical record. The records from the cluster tables assigned to a cluster are thus stored in a single common table in the database.
Which objects are independent transport objects?
Domains, Data elements, Tables, Technical settings for tables, Secondary indexes for transparent tables,
Structures, Views,
Matchcode objects, Matchcode IDs, Lock objects.
What are the Data types of the external layer?
ACCP, CHAR, CLNT, CUKY,CURR, DATS, DEC, FLTP, INT1,INT2, INT4, LANG, LCHR,LRAW, NUMC, PREC, QUAN,RAW ,TIMS, UNIT, VARC.
What are the Data types of the ABAP/4 layer?
Possible ABAP/4 data types: C: Character. D: Date, format YYYYMMDD. F: Floating-point number in DOUBLE PRECISION (8 bytes). I: Integer. N: Numerical character string of arbitrary length. P: Amount or counter field (packed; implementation depends on hardware platform). S: Time stamp YYYYMMDDHHMMSS. T: Time of day HHMMSS. V: Character string of variable length, length is given in the first two bytes. X: Hexadecimal (binary) storage.
How can we set the tablespaces and extent sizes ?
You can specify the extent sizes and the tablespace (physical storage
area in the database) in which a transparent table is to be stored by setting the size category and data class.
What is a data dictionary ?
Data dictionary is a central source of data in a data management system. Its main function is to support the .It has details about
- What data is contained ?
- What are the attributes of the data ?
- What is the relationship existing between the various data elements ?
What functions does a data dictionary perform ?
In a data management system, the principal functions performed by the data dictionary are
- Management of data definitions
- Provision of information for evaluation
- Support for software development
- Support form documentation
- Ensuring that the data definitions are flexible and up-to-date.
A field containing currency amounts (data type CURR) must be assigned to a reference table and a reference field. Explain.
As a reference table, a system table containing all the valid currencies is assigned or any other table which contains a field with the currency key format. This field is called as reference field. The assignment of the field containing currency amounts to the reference field is made at runtime. The value in the reference field determines the currency of the amount.
What is the significance of Technical settings (specified while creating a table in the data dictionary) ?
By specifying technical settings we can control how database tables are created in the database. The technical settings allows us to - optimize storage space requiremnets
- table access behaviour
- buffering required
- changes to entries logged
What is the significance of Delivery Class ?
- The delivery class controls the degree to which the SAP or the customer is responsible for table maintenance
- whether SAP provides the table with or without contents.
- determines the table type. - determines how the table behaves when it is first installed, at upgrade, when it is transported, and when a client copy is performed.
What is the maximum number of structures that can be included in a table or structure
- Nine.
What are the two methods of modifying Sap standard tables ?
- Append Structures and
- Customizing Includes.
What is the difference between a Substructure and an Append Structure ?
- In case of a substructure, the reference originates in the table itself, in the forma of a statement .include... . - In case of an append structure, the table itself remains unchanged and the refrence originates in the append structure.
What are the two ways for restricting the value range for a domain ? - By specifying fixed values.
- By stipulating a value table.
What is a Match Code ?
Match Code is a tool to help us to search for data records in the system. Match codes are an efficient and user-friendly search aid where key of a record is unknown. What are the two levels in defining a Match Code ?
- Match Code object
- Match Code Id.
What is the maximum number of match code Id's that can be defined for one Match code object ?
- 36. A match code Id is a one character ID which can be a letter or a number.
Can we define our own Match Code ID's for SAP Matchcodes ?
Yes, the numbers 0 to 9 are reserved for us to create our own Match Code IDs for a SAP defined Matchcode object.
What is an Update type with reference to a Match code ID?
If the data in one of the base tables of a matchcode ID changes, the matchcode data has to be updated. The update type stipulates when the matchcode is to be updated and how it is to be done. The update type also specifies which method is to be used for Building matchcodes . You must specify the update type when you define a matchcode ID.
What are conversion routines ?
- Non standard conversions from display format to sap internal format and vice-versa are implemented with so called conversion routines.
Aggregated Objects Views, matchcodes, and lock objects are also called aggregate objects because they are formed from several related tables.
What is a View ?
- A view is a logical view on one or more tables. A view on one or more tables i.e, the data from a view is not actually physically stored instead being derived from one or more tables. A view can be used to summarize data which is distributed among several tables
How many types of Views are there ? - Database View (SE11)
Database views are implement an inner join, that is, only records of the primary table (selected via the join operation) for which the corresponding records of the secondary tables also exist are fetched. Inconsistencies between primary and secondary table could, therefore, lead to a reduced selection set. In database views, the join conditions can be formulated using equality relationships between any base fields. In the other types of view, they must be taken from existing foreign keys. That is, tables can only be collected in a maintenance or help view if they are linked to one another via foreign keys.
- Help View ( SE54)
Help views are used to output additional information when the online help system is called. When the F4 button is pressed for a screen field, a check is first made on whether a matchcode is defined for this field. If this is not the case, the help view is displayed in which the check table of the field is the primary table. Thus, for each table no more than one help view can be created, that is, a table can only be primary table in at most one help view.
- Projection View
Projection views are used to suppress or mask certain fields in a table (projection), thus minimizing the number of interfaces. This means that only the data that is actually required is exchanged when the database is accessed. A projection view can draw upon only one table. Selection conditions cannot be specified for projection views.
- Maintenance View ( SE54 )
Maintenance views enable a business-oriented approach to looking at data, while at the same time, making it possible to maintain the data involved. Data from several tables can be summarized in a maintenance view and maintained collectively via this view. That is, the data is entered via the view and then distributed to the underlying tables by the system.
What is Locking ?
- When two users simultaneously attempt to access the same data record, this is synchronised by a lock mechanism.
When dialog transactions are programmed, locks are set and released by calling certain function modules. These function modules are generated automatically from the definition of so-called lock objects in the ABAP/4 Dictionary. To synchronize the access to a table by setting and removing locks, a Lock object has to be defined in the ABAP/4 Dictionary. Activating the lock object automatically creates #function modules for setting and removing locks. These function modules must be included when programming interactive transactions.
Lock Mechanism : To set locks, a lock object must be defined in the ABAP/4 Dictionary. In this lock object, those tables in which data records are to be locked by calling a lock are determined. All tables included in a lock object must be connected to each other via foreign keys. The key fields of the tables in a lock object form the Lock arguments for the tables. The lock arguments are the basis for formulating the logical condition for identifying the records to be locked. When activating this lock object, two function modulesB with the names ENQUEUE_ and DEQUEUE_ are generated.
Example :
Problem : You wish to prevent a user from being able to change the name of a course or the name of the professor with responsibility for the course at a time when another user is editing the course description (which contains this information).
Solution : The problem described above can be solved by defining a lock object E_UKURS. This is done by defining primary and secondary tables in the lock object. Table UKURS is check table of table UKRSB, so UKURS should be selected as primary table and UKRSB as secondary table of the lock object. The Lock argument in this case is the field combination FABNR, KRSNR, and SPRAS (i.e Primary Key Combination). The Lock mode Shared is to be selected here. This allows several users to access the data simultaneously in display mode. The lock mode in the generated function modules for setting (ENQUEUE_E_UKURS) and releasing (DEQUEUE_E_UKURS) locks is therefore set to shared as default, but can be overridden by calling the function modules. If the function module ENQUEUE_E_UKURS is called with FABNR = '1' and KRSNR = '3', the record for course 3 in faculty 1 is locked in table UKURS. Furthermore, all the course descriptions for this course are locked in table UKRSB since field SPRAS was not specified when the function module was called. In such cases, the lock is made generically for a field which is not defined. If the function module DEQUEUE_E_UKURS is now called with FABNR = '1', KRSNR = '3' and SPRAS = 'D', the German course description is unlocked. All other course descriptions remain locked.
What is database utility ?
-
Database utility is the interface between the ABAP/4 Dictionary and the underlying the SAP system.
The database utility is the interface between the ABAP/4 Dictionary and the relational database underlying the SAP system. You can call the database utility from the initial screen of the ABAP/4 Dictionary with Utilities ® Database utility. The database utility allows you to create, delete and convert objects from the ABAP/4 Dictionary in the database. MODULARIZATION What is Modularization and its benefits? If the program contains the same or similar blocks of statements or it is required to process the same function several times, we can avoid redundancy by using modularization techniques. By modularizing the ABAP/4 programs we make them easy to read and improve their structure. Modularized programs are also easier to maintain and to update.
How can we create callable modules of program code within one ABAP/4 Program?
A. By defining macros. B. By creating include programs in the library.
What are subroutines?
Subroutines are program modules which can be called from other ABAP/4 programs or within the same program.
What are the types of Subroutines?
A. Internal Subroutines: The source code of the internal subroutines will be in the
same ABAP/4 program as the calling procedure (internal call).
B. External Subroutines: The source code of the external subroutines will be in an
ABAP/4 program other than the calling procedure.
What are the different types of parameters?
Formal parameters: Parameters which are defined during the definition of subroutine with the FORM statement. Actual parameters: Parameters which are specified during the call of a subroutine with the PERFORM statement.
How can one distinguish between different kinds of parameters?
A. Input parameters are used to pass data to subroutines. B. Output parameters are used to pass data from subroutines.
What are the different methods of passing data?
A. Calling by reference: During a subroutine call, only the address of the actual
parameter is transferred to the formal parameters. The formal parameter has no memory of its own, and we work with the field of the calling program within the subroutine. If we change the formal parameter, the field contents in the calling program also change.
B. Calling by value: During a subroutine call, the formal parameters are created as
copies of the actual parameters. The formal parameters have memory of their own. Changes to the formal parameters have no effect on the actual parameters.
C. Calling by value and result: During a subroutine call, the formal parameters are
created as copies of the actual parameters. The formal parameters have their own memory space. Changes to the formal parameters are copied to the actual parameters at the end of the subroutine.
The method by which internal tables are passed is By Reference.
What is the difference between the function module and a normal ABAP/4 subroutine?
In contrast to normal subroutines function modules have uniquely defined interface. Sub routines do not return values.
Sub routines do not return exceptions. Sub routines cannot be tested independently. Declaring data as common parts is not possible for function modules. Function modules are stored in a central library. What is a function group? A function group is a collection of logically related modules that share global data with each other. All the modules in the group are included in the same main program. When an ABAP/4 program contains a CALL FUNCTION statement, the system loads the entire function group in with the program code at runtime. Every function module belongs to a function group.
What is the difference between internal tables and extract datasets?
A. The lines of an internal table always have the same structure. By using extract
datasets, you can handle groups of data with different structure and get statistical figures from the grouped data.
B. You have to define the structure of the internal table at the begining. You need
not define the structure of the extract dataset.
C. In contrast to internal tables, the system partly compresses extract datasets
when storing them. This reduces the storage space required.
D. Internal tables require special work area for interface whereas extract datasets
do not need a special work area for interface.
The table type determines how the logical table description defined in the ABAP/4 Dictionary is reproduced on the database. There are the following table types:
transparent table
structure
append structure
For internal purposes, such as storing control data or update texts, there are in addition the following table types:
pooled table
cluster table
generated view structure
Transparent table There is a physical table on the database for each transparent table. The names of the physical tables and the logical table definition in the ABAP/4 Dictionary correspond. All business data and application data are stored in transparent tables.
Structure No data records exist in the database for a structure. Structures are used for the interface definition between programs or between screens and programs.
Append structure An append structure defines a set of fields which belong to another table or structure but which are treated in the correction administration as its own object. Append structures are used to support modifications.
Pooled table Pooled tables can be used to store control data (e.g. screen sequences, program parameters or temporary data). Several pooled tables can be combined to form a table pool. The table pool corresponds to a physical table on the database in which all the records of the allocated pooled tables are stored.
Cluster table Cluster tables contain continuous text, for example, documentation. Several cluster tables can be combined to form a table cluster. Several logical lines of different tables are combined to form a physical record in this table type. This permits object-by-object storage or object-by-object access. In order to combine tables in clusters, at least parts of the keys must agree. Several cluster tables are stored in one corresponding table on the database.
Generated view structure In activation a structure is generated for a view. This structure serves as interface for the runtime environment. It does not generally appear in the ABAP/4 Dictionary.
What is a Data Class?
The Data class determines in which tablespace the table is stored when it is created in the database. What is a Size Category? The Size category describes the probable space requirement of the table in the database. How Many types of size categories and data classes are there? There are five size categories (0-4) and 11 data classes, only three of which are appropriate for application tables:
- APPL0 - Master data (data frequently accessed but rarely updated)
- APPL1 - Transaction data (data that is changed frequnetly)
- APPL2 - Organisational data (customizing data that is entered when system is
configured and then rarely changed)
What are control tables?
The values specified for the size category and data class are mapped to database-specific values via control tables.
What is the function of the transport system and workbench organiser?
The function of the transport system and the Workbench Organizer is to manage any changes made to objects of the ABAP/4 Development Workbench and to transport these changes between different SAP systems.
What is a table pool?
A table pool (or pool) is used to combine several logical tables in the ABAP/4 Dictionary. The definition of a pool consists of at least two key fields and a long argument field (VARDATA).
What are pooled tables?
These are logical tables which must be assigned to a table pool when they are defined. Pooled tables can be used to store control data (such as screen sequences or program parameters).
What is a table cluster?
A table cluster combines several logical tables in the ABAP/4 Dictionary. Several logical rows from different cluster tables are brought together in a single physical record. The records from the cluster tables assigned to a cluster are thus stored in a single common table in the database.
Which objects are independent transport objects?
Domains, Data elements, Tables, Technical settings for tables, Secondary indexes for transparent tables,
Structures, Views,
Matchcode objects, Matchcode IDs, Lock objects.
What are the Data types of the external layer?
ACCP, CHAR, CLNT, CUKY,CURR, DATS, DEC, FLTP, INT1,INT2, INT4, LANG, LCHR,LRAW, NUMC, PREC, QUAN,RAW ,TIMS, UNIT, VARC.
What are the Data types of the ABAP/4 layer?
Possible ABAP/4 data types: C: Character. D: Date, format YYYYMMDD. F: Floating-point number in DOUBLE PRECISION (8 bytes). I: Integer. N: Numerical character string of arbitrary length. P: Amount or counter field (packed; implementation depends on hardware platform). S: Time stamp YYYYMMDDHHMMSS. T: Time of day HHMMSS. V: Character string of variable length, length is given in the first two bytes. X: Hexadecimal (binary) storage.
How can we set the tablespaces and extent sizes ?
You can specify the extent sizes and the tablespace (physical storage
area in the database) in which a transparent table is to be stored by setting the size category and data class.
What is a data dictionary ?
Data dictionary is a central source of data in a data management system. Its main function is to support the .It has details about
- What data is contained ?
- What are the attributes of the data ?
- What is the relationship existing between the various data elements ?
What functions does a data dictionary perform ?
In a data management system, the principal functions performed by the data dictionary are
- Management of data definitions
- Provision of information for evaluation
- Support for software development
- Support form documentation
- Ensuring that the data definitions are flexible and up-to-date.
A field containing currency amounts (data type CURR) must be assigned to a reference table and a reference field. Explain.
As a reference table, a system table containing all the valid currencies is assigned or any other table which contains a field with the currency key format. This field is called as reference field. The assignment of the field containing currency amounts to the reference field is made at runtime. The value in the reference field determines the currency of the amount.
What is the significance of Technical settings (specified while creating a table in the data dictionary) ?
By specifying technical settings we can control how database tables are created in the database. The technical settings allows us to - optimize storage space requiremnets
- table access behaviour
- buffering required
- changes to entries logged
What is the significance of Delivery Class ?
- The delivery class controls the degree to which the SAP or the customer is responsible for table maintenance
- whether SAP provides the table with or without contents.
- determines the table type. - determines how the table behaves when it is first installed, at upgrade, when it is transported, and when a client copy is performed.
What is the maximum number of structures that can be included in a table or structure
- Nine.
What are the two methods of modifying Sap standard tables ?
- Append Structures and
- Customizing Includes.
What is the difference between a Substructure and an Append Structure ?
- In case of a substructure, the reference originates in the table itself, in the forma of a statement .include... . - In case of an append structure, the table itself remains unchanged and the refrence originates in the append structure.
What are the two ways for restricting the value range for a domain ? - By specifying fixed values.
- By stipulating a value table.
What is a Match Code ?
Match Code is a tool to help us to search for data records in the system. Match codes are an efficient and user-friendly search aid where key of a record is unknown. What are the two levels in defining a Match Code ?
- Match Code object
- Match Code Id.
What is the maximum number of match code Id's that can be defined for one Match code object ?
- 36. A match code Id is a one character ID which can be a letter or a number.
Can we define our own Match Code ID's for SAP Matchcodes ?
Yes, the numbers 0 to 9 are reserved for us to create our own Match Code IDs for a SAP defined Matchcode object.
What is an Update type with reference to a Match code ID?
If the data in one of the base tables of a matchcode ID changes, the matchcode data has to be updated. The update type stipulates when the matchcode is to be updated and how it is to be done. The update type also specifies which method is to be used for Building matchcodes . You must specify the update type when you define a matchcode ID.
What are conversion routines ?
- Non standard conversions from display format to sap internal format and vice-versa are implemented with so called conversion routines.
Aggregated Objects Views, matchcodes, and lock objects are also called aggregate objects because they are formed from several related tables.
What is a View ?
- A view is a logical view on one or more tables. A view on one or more tables i.e, the data from a view is not actually physically stored instead being derived from one or more tables. A view can be used to summarize data which is distributed among several tables
How many types of Views are there ? - Database View (SE11)
Database views are implement an inner join, that is, only records of the primary table (selected via the join operation) for which the corresponding records of the secondary tables also exist are fetched. Inconsistencies between primary and secondary table could, therefore, lead to a reduced selection set. In database views, the join conditions can be formulated using equality relationships between any base fields. In the other types of view, they must be taken from existing foreign keys. That is, tables can only be collected in a maintenance or help view if they are linked to one another via foreign keys.
- Help View ( SE54)
Help views are used to output additional information when the online help system is called. When the F4 button is pressed for a screen field, a check is first made on whether a matchcode is defined for this field. If this is not the case, the help view is displayed in which the check table of the field is the primary table. Thus, for each table no more than one help view can be created, that is, a table can only be primary table in at most one help view.
- Projection View
Projection views are used to suppress or mask certain fields in a table (projection), thus minimizing the number of interfaces. This means that only the data that is actually required is exchanged when the database is accessed. A projection view can draw upon only one table. Selection conditions cannot be specified for projection views.
- Maintenance View ( SE54 )
Maintenance views enable a business-oriented approach to looking at data, while at the same time, making it possible to maintain the data involved. Data from several tables can be summarized in a maintenance view and maintained collectively via this view. That is, the data is entered via the view and then distributed to the underlying tables by the system.
What is Locking ?
- When two users simultaneously attempt to access the same data record, this is synchronised by a lock mechanism.
When dialog transactions are programmed, locks are set and released by calling certain function modules. These function modules are generated automatically from the definition of so-called lock objects in the ABAP/4 Dictionary. To synchronize the access to a table by setting and removing locks, a Lock object has to be defined in the ABAP/4 Dictionary. Activating the lock object automatically creates #function modules for setting and removing locks. These function modules must be included when programming interactive transactions.
Lock Mechanism : To set locks, a lock object must be defined in the ABAP/4 Dictionary. In this lock object, those tables in which data records are to be locked by calling a lock are determined. All tables included in a lock object must be connected to each other via foreign keys. The key fields of the tables in a lock object form the Lock arguments for the tables. The lock arguments are the basis for formulating the logical condition for identifying the records to be locked. When activating this lock object, two function modulesB with the names ENQUEUE_ and DEQUEUE_ are generated.
Example :
Problem : You wish to prevent a user from being able to change the name of a course or the name of the professor with responsibility for the course at a time when another user is editing the course description (which contains this information).
Solution : The problem described above can be solved by defining a lock object E_UKURS. This is done by defining primary and secondary tables in the lock object. Table UKURS is check table of table UKRSB, so UKURS should be selected as primary table and UKRSB as secondary table of the lock object. The Lock argument in this case is the field combination FABNR, KRSNR, and SPRAS (i.e Primary Key Combination). The Lock mode Shared is to be selected here. This allows several users to access the data simultaneously in display mode. The lock mode in the generated function modules for setting (ENQUEUE_E_UKURS) and releasing (DEQUEUE_E_UKURS) locks is therefore set to shared as default, but can be overridden by calling the function modules. If the function module ENQUEUE_E_UKURS is called with FABNR = '1' and KRSNR = '3', the record for course 3 in faculty 1 is locked in table UKURS. Furthermore, all the course descriptions for this course are locked in table UKRSB since field SPRAS was not specified when the function module was called. In such cases, the lock is made generically for a field which is not defined. If the function module DEQUEUE_E_UKURS is now called with FABNR = '1', KRSNR = '3' and SPRAS = 'D', the German course description is unlocked. All other course descriptions remain locked.
What is database utility ?
-
Database utility is the interface between the ABAP/4 Dictionary and the underlying the SAP system.
The database utility is the interface between the ABAP/4 Dictionary and the relational database underlying the SAP system. You can call the database utility from the initial screen of the ABAP/4 Dictionary with Utilities ® Database utility. The database utility allows you to create, delete and convert objects from the ABAP/4 Dictionary in the database. MODULARIZATION What is Modularization and its benefits? If the program contains the same or similar blocks of statements or it is required to process the same function several times, we can avoid redundancy by using modularization techniques. By modularizing the ABAP/4 programs we make them easy to read and improve their structure. Modularized programs are also easier to maintain and to update.
How can we create callable modules of program code within one ABAP/4 Program?
A. By defining macros. B. By creating include programs in the library.
What are subroutines?
Subroutines are program modules which can be called from other ABAP/4 programs or within the same program.
What are the types of Subroutines?
A. Internal Subroutines: The source code of the internal subroutines will be in the
same ABAP/4 program as the calling procedure (internal call).
B. External Subroutines: The source code of the external subroutines will be in an
ABAP/4 program other than the calling procedure.
What are the different types of parameters?
Formal parameters: Parameters which are defined during the definition of subroutine with the FORM statement. Actual parameters: Parameters which are specified during the call of a subroutine with the PERFORM statement.
How can one distinguish between different kinds of parameters?
A. Input parameters are used to pass data to subroutines. B. Output parameters are used to pass data from subroutines.
What are the different methods of passing data?
A. Calling by reference: During a subroutine call, only the address of the actual
parameter is transferred to the formal parameters. The formal parameter has no memory of its own, and we work with the field of the calling program within the subroutine. If we change the formal parameter, the field contents in the calling program also change.
B. Calling by value: During a subroutine call, the formal parameters are created as
copies of the actual parameters. The formal parameters have memory of their own. Changes to the formal parameters have no effect on the actual parameters.
C. Calling by value and result: During a subroutine call, the formal parameters are
created as copies of the actual parameters. The formal parameters have their own memory space. Changes to the formal parameters are copied to the actual parameters at the end of the subroutine.
The method by which internal tables are passed is By Reference.
What is the difference between the function module and a normal ABAP/4 subroutine?
In contrast to normal subroutines function modules have uniquely defined interface. Sub routines do not return values.
Sub routines do not return exceptions. Sub routines cannot be tested independently. Declaring data as common parts is not possible for function modules. Function modules are stored in a central library. What is a function group? A function group is a collection of logically related modules that share global data with each other. All the modules in the group are included in the same main program. When an ABAP/4 program contains a CALL FUNCTION statement, the system loads the entire function group in with the program code at runtime. Every function module belongs to a function group.
What is the difference between internal tables and extract datasets?
A. The lines of an internal table always have the same structure. By using extract
datasets, you can handle groups of data with different structure and get statistical figures from the grouped data.
B. You have to define the structure of the internal table at the begining. You need
not define the structure of the extract dataset.
C. In contrast to internal tables, the system partly compresses extract datasets
when storing them. This reduces the storage space required.
D. Internal tables require special work area for interface whereas extract datasets
do not need a special work area for interface.
SAP ABAP LOGICAL DATABASE Interview Questions
What are logical databases?
What are the advantages/disadvantages of logical databases? Ans :- A Logical Database is a hierarchical structure of tables. Use the GET statement to process Logical Databases. - LDB consists of logically related tables grouped together used for reading and processing data.
- Advantages = 1. No need of programming for retrieval , meaning for data selection
- 2. Easy to use standard user interface, have check completeness of user input.
Disadvantages = 1. Fast in case of lesser no. of tables But if the table is in the lowest level of hierarchy, all upper level tables should be read so performance is slower.
Preparation of the data records by the L.D.B and reading of the data records in the actual report are accomplished with the command pair.
- Put and Get.
The three main elements of LDB are - Structure, Selections, Database Program.
What sort of tables one can use in designing the hierarchy of a LDB ?
- Tables which are having Foreign key relations.
The structure of Logical Databases relfects the ________________ dependencies of hierarchical tables in the SAP System.
- Foreign key
If you want to improve the response time ( time to access data ) Logical DataBases permits you to achieve this using ______________
- VIEWS.
What are the advantages of Logical DataBases ?
- It offers an easy-to-use selection screen.
You can modify the pre-generated selection screen to your needs. It offers check functions to check whether user input is complete, correct, and plausible.
It offers reasonable data selections.
It contains central authorization checks for database accesses.
Enhancements such as improved performance immediately apply to all report programs that use the logical database.
Report FORMATTING In order to suppress the leading zeros of a number field the keywords used are : NO-ZERO. The Command that allows for vertical alignment of fields one below the other. UNDER. In order to concatenate strings only for output purposes the command _________ can be used in conjunction with the 'Write' statement. NO-GAP. Data can be moved from one field to another using a 'Write:' Statement and stored in the desired format. TRUE. Write : Date_1 to Date_2 format DD/MM/YY. In order to have boldfaced text as output the command used is Write : INTENSIFIED. Background and foreground colors can be interchanged using the command Format inverse. Which datatype cannot be used to define parameters. Type F. For each new event, the system resets all formatting options to their default values. TRUE.
The processing block following END-OF-PAGE is processed only if you reserve lines for the footer in the LINE-COUNT option of the REPORT statement.
To execute a page break under the condition that less than a certain number of lines is left on a page is acheived by ________________________. RESERVE n lines. What is the limit for the length of a page if the page length is not specified in the report statement. 60,000 Lines. How can Symbols or R/3 icons be output on the screen? WRITE AS SYMBOL. WRITE AS ICON.
REPORTING - GENERAL What are reports? and how do you set up reports? A report program reads and analyzes data from one or more database tables without modifying the database. Usually, the result of such a report program is in the form of a list which is output to the screen or sent to a printer. What are the different types of programs?
I Include Program
M Module Pool
F Function Modules
S External Subroutines
1 Online program
Events in Reporting ? Explain ?
The following events occur at runtime of a typical report program which uses logical databases: Event keyword
Event
-- INITIALIZATION
Point before the selection screen
is displayed
When you start a program in which a selection screen is defined (either in the program itself or in the linked logical database program), the system normally processes this selection screen first. If you want to execute a processing block before the selection screen is processed, you can assign it to the event keyword INITIALIZATION.
AT SELECTION-SCREEN
Point after processing user input on the selection screen while the selection screen is still active
The event keyword AT SELECTION-SCREEN provides you with several possibilities to carry out processing blocks while the system is processing the selection screen.
START-OF-SELECTION
Point after processing the selection screen
The event START-OF-SELECTION gives you the possibility of creating a processing block after processing the selection screen and before accessing database tables using a logical database. You can use this processing block, for example, to set the values of internal fields or to write informational statements onto the output screen. At the START-OF-SELECTION event, also all statements are processed that are not attached to an event keyword except those that are written behind a FORM-ENDFORM block .
GET
Point at which the logical database offers a line of the database table
The most important event for report programs with an attached logical database is the moment at which the logical database program has read a line from a database table (see Accessing Data Using Logical Databases ). To start a processing block at this event, use the GET statement as follows:
Syntax
GET
[FIELDS ].
[FIELDS ]. After this statement, you can work with the current line of the database table
. The data is provided in the table work area
GET LATE
Point after processing all tables which are hierarchically subordinate to the database table
in the structure of the logical database.
To start a processing block at the moment after the system has processed all database tables of a logical database that are hierarchically inferior to a specific database table, use the event keyword GET as follows:
Syntax :
GET
LATE [FIELDS ]
In analogy to report programs that use only SELECT statements (see table in Comparison of Access Methods ), the processing block of a GET LATE
statement would appear directly before the ENDSELECT statement in the SELECT loop for the database table
.
END-OF-SELECTION
Point after processing all lines offered by the logical database.
To define a processing block after the system has read and processed all database tables of a logical database, use the keyword END-OF-SELECTION. The following events occur during the processing of the output list of a report program: Event keyword
Event
-----------------------------------------------------------------------------------------------
TOP-OF-PAGE
Point during list processing when a new page is started
END-OF-PAGE
Point during list processing when a page is ended
The following events occur during the display of the output list of a report program: Event keyword
Event
--AT LINE-SELECTION
Point at which the user selects a line
AT USER-COMMAND
Point at which the user presses a function key or enters a command in the
command field.
AT PF
Point at which the user presses the function key with the function code
PF
With the selection screen, ABAP/4 offers an interactive element also for report programs. You can define a selection screen without having to bother about all the details required in dialog programming. The selection screen is always processed directly after a report program is started. The user can enter field values and selection criteria on this screen. The main purpose of the selection screen is to enable the user to control the database selections of the report program. If a report program is started from another ABAP/4 program with the SUBMIT statement (see Calling Reports), the selection screen objects also serve as a data interface, With a selection screen defined in the report program, you can enable the user to ·
assign values to variables with the PARAMETERS statement
·
determine selection criteria with the SELECT-OPTIONS statement
How do you read selected lines of database table into an internal table in packages of predefined size?.
SELECT * FROM INTO TABLE PACKAGE SIZE .
where 'n' is variable.
Name the WILDCARD characters which are used for comparisions with character strings & numeric strings.
'%' and '_'.
How to specify a client for database table processing.
TABLES SPFLI.
SELECT * FROM SPFLI CLIENT SPECIFIED
WHERE MANDT BETWEEN '001' AND '003'.
...
ENDSELECT.
Activation During activation, the runtime object of aggregate object or tables is created. The runtime object is buffered so that the application program can access it quickly. Runtime object has information about the following objects of table - domain data elements field definition table definition
Lock Mechanism prevents a new database operation being started an existing one has been correctly completed. When conversion is done, lock is created automatically and released only when conversion is successful. Clearing of locks restart adjustment attempt is made to continue conversion at the point of
termination
Cancel adjustment lock entry is simply deleted from table
Version Management functions
- Canceling changes reset revised version to active version
- Storing changes active version will be temporarily stored in version
Switching changes switch between active and revised versions
Version catalog list of all existing versions of an object
- Revised version produced when we edit an existing object
- Active version produced when we activate an object
- Temporary version produced when we copy the active version temporarily to the database with store version functions
- Historical versions created when 1. Correction is created 2 correction is
released
Table Buffering : Possible buffering types
- full buffering either, whole table or none of the table is located in the buffer (Tables up to 30 kb done in client dependent fully buffered tables)
- Generic buffering generic areas of the table are fully buffered.
- Generic key left justified section of primary key of a table.
Single record buffering records actually being accessed are loaded to buffers, large records where few records are accessed.
Internal Tables ? Types ?
STANDARD table Key access to a standard table uses a linear search. This means that the time required for a search is in linear relation to the number of table entries. You should use index operations to access standard tables.
SORTED table Defines the table as one that is always saved correctly sorted. Key access to a sorted table uses a binary key. If the key is not unique, the system takes the entry with the lowest index. The runtime required for key access is logarithmically related to the number of table entries.
HASHED table Defines the table as one that is managed with an internal hash procedure You can only access a hashed table using the generic key operations or other generic operations ( SORT, LOOP, and so on). Explicit or implicit index operations (such as LOOP ... FROM oe INSERT itab within a LOOP) are not allowed.
INDEX table A table that can be accessed using an index. Index table is only used to specify the type of generic parameters in a FORM or FUNCTION. That means that you can't create a table of type INDEX. Standard tables and sorted tables are index tables.
Syntax : DATA itab TYPE table type of line type [WITH UNIQUE/NON-UNIQUE KEY ] [Iinitial size n] [WITH HEADER LINE]
What are DATA CLUSTERS ?
You can group any complex internal data objects of an ABAP/4 program together in data clusters and store them temporarily in ABAP/4 memory or for longer periods in databases. You can store data clusters in special databases of the ABAP/4 Dictionary. These databases are known as ABAP/4 cluster databases and have a predefined structure.Storing a data cluster is specific to ABAP/4. Although you can also access
cluster databases using SQL statements, only ABAP/4 statements are able to decode the structure of the stored data cluster.
Describe the functions of the debugger screen.
- Single step(F5) - Use this option to step through the program statement by statement. This allows you to branch into subroutines and function modules, and to execute these routines step by step as well. Once a subroutine or function module has been processed, control returns to the statement following the CALL FUNCTION or PERFORM statement.
- Execute(F6)- Use this option to process a program line by line. All of the statements on the current line are processed in a single step. If you are positioned on a line that calls a subroutine and you choose Execute, the Debugger processes the whole subroutine and then moves on to the line following the subroutine call. This allows you to jump through the statements within the subroutine.
- Return(F7) - The Debugger returns from a routine to the point at which control returns to the main program. Use this option to return from a subroutine, function module, or called program to the calling program.
- Continue(F8)- Use this option to process the program up to the next dynamic or static breakpoint or up to the cursor position. If there are no more breakpoints in the program and no cursor has been set, the system exits debugging mode and executes the rest of the program normally.
- Tables - Display the contents of internal tables.
Problem:How to run a program in background?
Solution :Execute the Report In the selection screen :After filling the screen fields press F9. A screen appears requesting U to print the Background Parameters *Enter the output device(Eg HPLJ /SAP2 etc) *In the spool options Uncheck Print immedietly,Uncheck delete after output,and new spool request. Press enter. Another screen appears with heading start time .U can press start immly ,then save Now the Background job is scheduled for the given program .
To View the status of background Job,The transaction code is SM37. Execute from the resulting screen . Job overview -->From the Job list select U'r program and select Spool from the application toolbar Output Controller :List of Spool Requests Select U'r Spool request and click Display icon from the overview screen . U will be displayed with the List. Caution :See to that the list with does not exceed 255 columns ,If it exceeds the extra columns will be truncated in Background
What are presentation and application servers in SAP?
A presentation server is actually a program named Sapgui.exe. It is usually installed on a user's workstation. Application server is a set of executables that collectively interpret the ABAP/4 programs and manage the input & output for them.
In an ABAP/4 program how do you access data that exists on a presentation server v/s on an application server?
For presentation server use UPLOAD or WS_UPLOAD function modules. For application server use OPEN DATASET, READ DATASET and CLOSE DATASET commands.
Describe the syntax and function of the AUTHORITY CHECK command?
Ans :- AUTHORITY CHECK OBJECT
ID FIELD ID FIELD ... IF SY-SUBRC NE 0. The AUTHORITY-CHECK checks whether a user has the appropriate authorization to execute a particular activity.
What are the advantages/disadvantages of logical databases? Ans :- A Logical Database is a hierarchical structure of tables. Use the GET statement to process Logical Databases. - LDB consists of logically related tables grouped together used for reading and processing data.
- Advantages = 1. No need of programming for retrieval , meaning for data selection
- 2. Easy to use standard user interface, have check completeness of user input.
Disadvantages = 1. Fast in case of lesser no. of tables But if the table is in the lowest level of hierarchy, all upper level tables should be read so performance is slower.
Preparation of the data records by the L.D.B and reading of the data records in the actual report are accomplished with the command pair.
- Put and Get.
The three main elements of LDB are - Structure, Selections, Database Program.
What sort of tables one can use in designing the hierarchy of a LDB ?
- Tables which are having Foreign key relations.
The structure of Logical Databases relfects the ________________ dependencies of hierarchical tables in the SAP System.
- Foreign key
If you want to improve the response time ( time to access data ) Logical DataBases permits you to achieve this using ______________
- VIEWS.
What are the advantages of Logical DataBases ?
- It offers an easy-to-use selection screen.
You can modify the pre-generated selection screen to your needs. It offers check functions to check whether user input is complete, correct, and plausible.
It offers reasonable data selections.
It contains central authorization checks for database accesses.
Enhancements such as improved performance immediately apply to all report programs that use the logical database.
Report FORMATTING In order to suppress the leading zeros of a number field the keywords used are : NO-ZERO. The Command that allows for vertical alignment of fields one below the other. UNDER. In order to concatenate strings only for output purposes the command _________ can be used in conjunction with the 'Write' statement. NO-GAP. Data can be moved from one field to another using a 'Write:' Statement and stored in the desired format. TRUE. Write : Date_1 to Date_2 format DD/MM/YY. In order to have boldfaced text as output the command used is Write : INTENSIFIED. Background and foreground colors can be interchanged using the command Format inverse. Which datatype cannot be used to define parameters. Type F. For each new event, the system resets all formatting options to their default values. TRUE.
The processing block following END-OF-PAGE is processed only if you reserve lines for the footer in the LINE-COUNT option of the REPORT statement.
To execute a page break under the condition that less than a certain number of lines is left on a page is acheived by ________________________. RESERVE n lines. What is the limit for the length of a page if the page length is not specified in the report statement. 60,000 Lines. How can Symbols or R/3 icons be output on the screen? WRITE AS SYMBOL. WRITE AS ICON.
REPORTING - GENERAL What are reports? and how do you set up reports? A report program reads and analyzes data from one or more database tables without modifying the database. Usually, the result of such a report program is in the form of a list which is output to the screen or sent to a printer. What are the different types of programs?
I Include Program
M Module Pool
F Function Modules
S External Subroutines
1 Online program
Events in Reporting ? Explain ?
The following events occur at runtime of a typical report program which uses logical databases: Event keyword
Event
-- INITIALIZATION
Point before the selection screen
is displayed
When you start a program in which a selection screen is defined (either in the program itself or in the linked logical database program), the system normally processes this selection screen first. If you want to execute a processing block before the selection screen is processed, you can assign it to the event keyword INITIALIZATION.
AT SELECTION-SCREEN
Point after processing user input on the selection screen while the selection screen is still active
The event keyword AT SELECTION-SCREEN provides you with several possibilities to carry out processing blocks while the system is processing the selection screen.
START-OF-SELECTION
Point after processing the selection screen
The event START-OF-SELECTION gives you the possibility of creating a processing block after processing the selection screen and before accessing database tables using a logical database. You can use this processing block, for example, to set the values of internal fields or to write informational statements onto the output screen. At the START-OF-SELECTION event, also all statements are processed that are not attached to an event keyword except those that are written behind a FORM-ENDFORM block .
GET
Point at which the logical database offers a line of the database table
The most important event for report programs with an attached logical database is the moment at which the logical database program has read a line from a database table (see Accessing Data Using Logical Databases ). To start a processing block at this event, use the GET statement as follows:
Syntax
GET
[FIELDS ].
[FIELDS ]. After this statement, you can work with the current line of the database table
. The data is provided in the table work area
GET LATE
Point after processing all tables which are hierarchically subordinate to the database table
in the structure of the logical database.
To start a processing block at the moment after the system has processed all database tables of a logical database that are hierarchically inferior to a specific database table, use the event keyword GET as follows:
Syntax :
GET
LATE [FIELDS ]
In analogy to report programs that use only SELECT statements (see table in Comparison of Access Methods ), the processing block of a GET LATE
statement would appear directly before the ENDSELECT statement in the SELECT loop for the database table
.
END-OF-SELECTION
Point after processing all lines offered by the logical database.
To define a processing block after the system has read and processed all database tables of a logical database, use the keyword END-OF-SELECTION. The following events occur during the processing of the output list of a report program: Event keyword
Event
-----------------------------------------------------------------------------------------------
TOP-OF-PAGE
Point during list processing when a new page is started
END-OF-PAGE
Point during list processing when a page is ended
The following events occur during the display of the output list of a report program: Event keyword
Event
--AT LINE-SELECTION
Point at which the user selects a line
AT USER-COMMAND
Point at which the user presses a function key or enters a command in the
command field.
AT PF
Point at which the user presses the function key with the function code
PF
With the selection screen, ABAP/4 offers an interactive element also for report programs. You can define a selection screen without having to bother about all the details required in dialog programming. The selection screen is always processed directly after a report program is started. The user can enter field values and selection criteria on this screen. The main purpose of the selection screen is to enable the user to control the database selections of the report program. If a report program is started from another ABAP/4 program with the SUBMIT statement (see Calling Reports), the selection screen objects also serve as a data interface, With a selection screen defined in the report program, you can enable the user to ·
assign values to variables with the PARAMETERS statement
·
determine selection criteria with the SELECT-OPTIONS statement
How do you read selected lines of database table into an internal table in packages of predefined size?.
SELECT * FROM INTO TABLE PACKAGE SIZE .
where 'n' is variable.
Name the WILDCARD characters which are used for comparisions with character strings & numeric strings.
'%' and '_'.
How to specify a client for database table processing.
TABLES SPFLI.
SELECT * FROM SPFLI CLIENT SPECIFIED
WHERE MANDT BETWEEN '001' AND '003'.
...
ENDSELECT.
Activation During activation, the runtime object of aggregate object or tables is created. The runtime object is buffered so that the application program can access it quickly. Runtime object has information about the following objects of table - domain data elements field definition table definition
Lock Mechanism prevents a new database operation being started an existing one has been correctly completed. When conversion is done, lock is created automatically and released only when conversion is successful. Clearing of locks restart adjustment attempt is made to continue conversion at the point of
termination
Cancel adjustment lock entry is simply deleted from table
Version Management functions
- Canceling changes reset revised version to active version
- Storing changes active version will be temporarily stored in version
Switching changes switch between active and revised versions
Version catalog list of all existing versions of an object
- Revised version produced when we edit an existing object
- Active version produced when we activate an object
- Temporary version produced when we copy the active version temporarily to the database with store version functions
- Historical versions created when 1. Correction is created 2 correction is
released
Table Buffering : Possible buffering types
- full buffering either, whole table or none of the table is located in the buffer (Tables up to 30 kb done in client dependent fully buffered tables)
- Generic buffering generic areas of the table are fully buffered.
- Generic key left justified section of primary key of a table.
Single record buffering records actually being accessed are loaded to buffers, large records where few records are accessed.
Internal Tables ? Types ?
STANDARD table Key access to a standard table uses a linear search. This means that the time required for a search is in linear relation to the number of table entries. You should use index operations to access standard tables.
SORTED table Defines the table as one that is always saved correctly sorted. Key access to a sorted table uses a binary key. If the key is not unique, the system takes the entry with the lowest index. The runtime required for key access is logarithmically related to the number of table entries.
HASHED table Defines the table as one that is managed with an internal hash procedure You can only access a hashed table using the generic key operations or other generic operations ( SORT, LOOP, and so on). Explicit or implicit index operations (such as LOOP ... FROM oe INSERT itab within a LOOP) are not allowed.
INDEX table A table that can be accessed using an index. Index table is only used to specify the type of generic parameters in a FORM or FUNCTION. That means that you can't create a table of type INDEX. Standard tables and sorted tables are index tables.
Syntax : DATA itab TYPE table type of line type [WITH UNIQUE/NON-UNIQUE KEY ] [Iinitial size n] [WITH HEADER LINE]
What are DATA CLUSTERS ?
You can group any complex internal data objects of an ABAP/4 program together in data clusters and store them temporarily in ABAP/4 memory or for longer periods in databases. You can store data clusters in special databases of the ABAP/4 Dictionary. These databases are known as ABAP/4 cluster databases and have a predefined structure.Storing a data cluster is specific to ABAP/4. Although you can also access
cluster databases using SQL statements, only ABAP/4 statements are able to decode the structure of the stored data cluster.
Describe the functions of the debugger screen.
- Single step(F5) - Use this option to step through the program statement by statement. This allows you to branch into subroutines and function modules, and to execute these routines step by step as well. Once a subroutine or function module has been processed, control returns to the statement following the CALL FUNCTION or PERFORM statement.
- Execute(F6)- Use this option to process a program line by line. All of the statements on the current line are processed in a single step. If you are positioned on a line that calls a subroutine and you choose Execute, the Debugger processes the whole subroutine and then moves on to the line following the subroutine call. This allows you to jump through the statements within the subroutine.
- Return(F7) - The Debugger returns from a routine to the point at which control returns to the main program. Use this option to return from a subroutine, function module, or called program to the calling program.
- Continue(F8)- Use this option to process the program up to the next dynamic or static breakpoint or up to the cursor position. If there are no more breakpoints in the program and no cursor has been set, the system exits debugging mode and executes the rest of the program normally.
- Tables - Display the contents of internal tables.
Problem:How to run a program in background?
Solution :Execute the Report In the selection screen :After filling the screen fields press F9. A screen appears requesting U to print the Background Parameters *Enter the output device(Eg HPLJ /SAP2 etc) *In the spool options Uncheck Print immedietly,Uncheck delete after output,and new spool request. Press enter. Another screen appears with heading start time .U can press start immly ,then save Now the Background job is scheduled for the given program .
To View the status of background Job,The transaction code is SM37. Execute from the resulting screen . Job overview -->From the Job list select U'r program and select Spool from the application toolbar Output Controller :List of Spool Requests Select U'r Spool request and click Display icon from the overview screen . U will be displayed with the List. Caution :See to that the list with does not exceed 255 columns ,If it exceeds the extra columns will be truncated in Background
What are presentation and application servers in SAP?
A presentation server is actually a program named Sapgui.exe. It is usually installed on a user's workstation. Application server is a set of executables that collectively interpret the ABAP/4 programs and manage the input & output for them.
In an ABAP/4 program how do you access data that exists on a presentation server v/s on an application server?
For presentation server use UPLOAD or WS_UPLOAD function modules. For application server use OPEN DATASET, READ DATASET and CLOSE DATASET commands.
Describe the syntax and function of the AUTHORITY CHECK command?
Ans :- AUTHORITY CHECK OBJECT
ID FIELD ID FIELD ... IF SY-SUBRC NE 0. The AUTHORITY-CHECK checks whether a user has the appropriate authorization to execute a particular activity.
SAP ABAP Dialog Programming FAQ
1) Why do I need to do dialog programming?
Ans: to have your own customized screens and processing
2) What does dialog programming consist of ?
Ans: Screens with their corresponding processing code, Menu , module pool program
3) Difference between the normal report / program and Module pool program?
Ans: Normal report can be run straight away by executing it and useually has a selection criteria – Attributes : 1 online program
Module pool program cannot be run straight away. It first needs to display a screen – attributes : M module pool program
4) What is PBO and PAI?
Ans: Process before output. Code that is executed prior to the display of a screen.
Process after input. Code that is executed after a button on the screen has been pressed.
5) How can I identify which button is pressed?
Ans: “ fcode” attributes of the button. Define the okcode value of the screen (type sy-ucomm)
6) What is the GUI interface to the program?
Ans: The menu bar where you define the ok-codes of the buttons and function keys for the screen. You typically code SAVE, BACK, CANC, EXIT and then more specific codes. CANC (leave to screen 0) allows you to get out of the current screen.
7) What does PAI and Pbo contain by default?
Ans: PBO - MODULE STATUS_0100 - Key / button definitions
PAI - * MODULE USER_COMMAND_0100 - How do you handle thecode behind the button that was pressed
8) If we do not have / give menu bar than what will menu bar have by default?
Ans: Not much -> system , help
9) How many PBO and PAI modules are allowed for a screen?
Ans: one PBO and one PAI
10) In the menu bar can you associate a function key to a button?
Ans: yes
Ans: to have your own customized screens and processing
2) What does dialog programming consist of ?
Ans: Screens with their corresponding processing code, Menu , module pool program
3) Difference between the normal report / program and Module pool program?
Ans: Normal report can be run straight away by executing it and useually has a selection criteria – Attributes : 1 online program
Module pool program cannot be run straight away. It first needs to display a screen – attributes : M module pool program
4) What is PBO and PAI?
Ans: Process before output. Code that is executed prior to the display of a screen.
Process after input. Code that is executed after a button on the screen has been pressed.
5) How can I identify which button is pressed?
Ans: “ fcode” attributes of the button. Define the okcode value of the screen (type sy-ucomm)
6) What is the GUI interface to the program?
Ans: The menu bar where you define the ok-codes of the buttons and function keys for the screen. You typically code SAVE, BACK, CANC, EXIT and then more specific codes. CANC (leave to screen 0) allows you to get out of the current screen.
7) What does PAI and Pbo contain by default?
Ans: PBO - MODULE STATUS_0100 - Key / button definitions
PAI - * MODULE USER_COMMAND_0100 - How do you handle thecode behind the button that was pressed
8) If we do not have / give menu bar than what will menu bar have by default?
Ans: Not much -> system , help
9) How many PBO and PAI modules are allowed for a screen?
Ans: one PBO and one PAI
10) In the menu bar can you associate a function key to a button?
Ans: yes
More than 100 ABAP Interview Faq's
1. What is the typical structure of an ABAP/4 program?
ANS:-
HEADER ,BODY,FOOTER.
2. What are field symbols and field groups.?
Have you used "component idx of structure" clause with field groups?
ANS:-
Field symbols:-
Field groups :-
Can any body explain me what is field group?
Field groups are groups similar fields together into one name. Field group works in conjuction with
INSERT f1 f2 INTO fg
EXTRACT fg
SORT BY fg
LOOP ... ENDLOOP
INSERT f1 f2 INTO fg
---------------------
The insert statement is used to create a field group dynamically by inserting the field into it. Only global data fields can be inserted and not local data fields eg : in form modules.
EXTRACT fg
----------
This will combine all the fields in the fieldgroup and write them to a sequential dataset as a single record.
SORT BY fg
----------
Sorting of sequential dataset by field group.
LOOP AND ENDLOOP
---------------
LOOP.
AT ***
......
....
ENDAT.
AT ***
.....
....
ENDAT.
ENDLOOP. *-- Chinmaya
3. What should be the approach for writing a BDC program?
ANS:-
STEP 1: CONVERTING THE LEGACY SYSTEM DATA TO A FLAT FILE to internal table CALLED "CONVERSION".
STEP 2: TRANSFERING THE FLAT FILE INTO SAP SYSTEM CALLED "SAP DATA TRANSFER".
STEP 3: DEPENDING UPON THE BDC TYPE i)call transaction(Write the program explicity)
ii) create sessions (sessions are created and processed.if success data will transfer).
4. What is a batch input session?
ANS:-
BATCH INPUT SESSION is an intermediate step between internal table and database table.
Data along with the action is stored in session ie data for screen fields, to which screen it is passed,program name behind it, and how next screen is processed.
5. What is the alternative to batch input session?
ANS:-
Call transaction.
6. A situation: An ABAP program creates a batch input session.
We need to submit the program and the batch session in back ground. How to do it?
ANS:-
go to SM36 and create background job by giving
job name,job class and job steps (JOB SCHEDULING)
8. What are the problems in processing batch input sessions?
How is batch input process different from processing online?
ANS:-
PROBLEMS:-
i) If the user forgets to opt for keep session then the session will be automatically removed from the session queue(log remains). However if session is processed we may delete it manually.
ii)if session processing fails data will not be transferred to SAP database table.
10. What are the different types of data dictionary objects?
ans:-
tables, structures, views, domains, data elements, lock objects, Matchcode objects.
11. How many types of tables exists and what are they in data dictionary?
ans :-
4 types of tables
i)Transparent tables - Exists with the same structure both in dictionary as well as in database exactly with the same data and fields. Both Opensql and Nativesql can be used.
ii)Pool tables & iii)Cluster tables -
These are logical tables that are arranged as records of transparent tables.one cannot use native sql on these tables
(only opensql).They are not managable directly using database system tools.
iv)Internal tables - .
12. What is the step by step process to create a table in data dictionary?
ans:-
step 1: creating domains(data type,field length,range).
step 2: creating data elements(properties and type for a table
field).
step 3: creating tables(SE11).
13. Can a transparent table exist in data dictionary but not in the data base physically?
ANS:- NO.
TRANSPARENT TABLE DO EXIST WITH THE SAME STRUCTURE BOTH IN THE DICTIONARY AS WELL AS IN THE DATABASE,EXACTLY WITH THE SAME DATA AND FIELDS.
14. What are the domains and data elements?
ANS:-
DOMAINS : FORMAL DEFINITION OF THE DATA TYPES.THEY SET ATTRIBUTES SUCH AS DATA TYPE,LENGTH,RANGE.
DATA ELEMENT : A FIELD IN R/3 SYSTEM IS A DATA ELEMENT.
15. Can you create a table with fields not referring to data elements?
ANS:-
YES. eg:- ITAB LIKE SPFLI.here we are referening to a data object(SPFLI) not data element.
16. What is the advantage of structures? How do you use them in the ABAP programs?
ANS:-
Adv:- GLOBAL EXISTANCE(these could be used by any other program without creating it again).
17. What does an extract statement do in the ABAP program?
ANS:-
Once you have declared the possible record types as field groups and defined their structure, you can fill the extract dataset using the following statements:
EXTRACT
When the first EXTRACT statement occurs in a program, the system creates the extract dataset and adds the first extract record to it. In each subsequent EXTRACT statement, the new extract record is added to the dataset
EXTRACT HEADER.
When you extract the data, the record is filled with the current values of the corresponding fields.
As soon as the system has processed the first EXTRACT statement for a field group
By processing EXTRACT statements several times using different field groups, you fill the extract dataset with records of different length and structure. Since you can modify field groups dynamically up to their first usage in an EXTRACT statement, extract datasets provide the advantage that you need not determine the structure at the beginning of the program.
18. What is a collect statement? How is it different from append?
ANS:-
If an entry with the same key already exists, the COLLECT statement does not append a new line, but adds the contents of the numeric fields in the work area to the contents of the numeric fields in the existing entry.
19. What is open sql vs native sql?
ANS:- by Madhukar
Open SQL , native SQL are the interfaces to create the database applicatons.
Open SQL is consistant across different types of existing Databases.
Native SQL is the database language specific to database.Its API is specific to the databse.
Open SQL API is consistent across all vendors
20. What does an EXEC SQL stmt do in ABAP? What is the disadvantage of using it?
ANS:-
21. What is the meaning of ABAP/4 editor integrated with ABAP/4 data dictionary?
ANS:-
22. What are the events in ABAP/4 language?
ANS:-
Initialization, At selection-screen,Start-of-selection,end-of-selection,top-of-page,end-of-page, At line-selection,At user-command,At PF,Get,At New,At LAST,AT END, AT FIRST.
23. What is an interactive report?
What is the obvious diff of such report compared with classical type reports?
ANS:-
An Interactive report is a dynamic drill down report that produces the list on users choice.
diff:-
a) THE LIST PRODUCED BY CLASSICAL REPORT DOESN'T allow user to interact with the system
the list produced by interactive report allows the user to interact with the system.
b) ONCE A CLASSICAL REPORT EXECUTED USER LOOSES CONTROL.IR USER HAS CONTROL.
c) IN CLASSICAL REPORT DRILLING IS NOT POSSIBLE.IN INTERACTIVE DRILLING IS POSSIBLE.
24. What is a drill down report?
ANS:-
Its an Interactive report where in the user can get more relavent data by selecting explicitly.
25. How do you write a function module in SAP? describe.
ANS:-
creating function module:-
called program - se37-creating funcgrp,funcmodule by assigning attributes,importing,exporting,tables,exceptions.
calling program - SE38-in pgm click pattern and write function name- provide export,import,tables,exception values.
26. What are the exceptions in function module?
ANS:-
COMMUNICATION_FAILURE
SYSTEM_FAILURE
27. What is a function group?
ANS:-
GROUP OF ALL RELATED FUNCTIONS.
28. How are the date and time field values stored in SAP?
ANS:-
DD.MM.YYYY. HH:MM:SS
30. Name a few data dictionary objects? //rep//
ANS:-
TABLES,VIEWS,STRUCTURES,LOCK OBJECTS,MATCHCODE OBJECTS.
31. What happens when a table is activated in DD?
ANS:-
It is available for any insertion,modification and updation of records by any user.
32. What is a check table and what is a value table?
Check table will be at field level checking.
Value table will be at domain level checking ex: scarr table is check table for carrid.
33. What are match codes? describe?
ans:-
It is a similar to table index that gives list of possible values for either primary keys or non-primary keys.
34. What transactions do you use for data analysis?
ANS:-
35. What is table maintenance generator?
ANS:-
36. What are ranges? What are number ranges?
ANS:-
max,min values provided in selection screens.
37. What are select options and what is the diff from parameters?
ANS:-
select options provide ranges where as parameters do not.
SELECT-OPTIONS declares an internal table which is automatically filled with values or ranges
of values entered by the end user. For each SELECT-OPTIONS , the system creates a selection table.
SELECT-OPTIONS
A selection table is an internal table with fields SIGN, OPTION, LOW and HIGH.
The type of LOW and HIGH is the same as that of
The SIGN field can take the following values: I Inclusive (should apply) E Exclusive (should not apply)
The OPTION field can take the following values: EQ Equal GT Greater than NE Not equal BT Between LE Less
than or equal NB Not between LT Less than CP Contains pattern GE Greater than or equal NP No pattern.
diff:-
PARAMETERS allow users to enter a single value into an internal field within a report.
SELECT-OPTIONS allow users to fill an internal table with a range of values.
For each PARAMETERS or SELECT-OPTIONS statement you should define text elements by choosing
Goto - Text elements - Selection texts - Change.
Eg:- Parameters name(30).
when the user executes the ABAP/4 program,an input field for 'name' will appear on the selection screen.You can change the comments on the left side of the input fields by using text elements as described in Selection Texts.
38. How do you validate the selection criteria of a report?
And how do you display initial values in a selection screen?
ANS:-
validate :- by using match code objects.
display :- Parameters
select-options
39. What are selection texts?
ANS:-
40. What is CTS and what do you know about it?
ANS:-
The Change and Transport System (CTS) is a tool that helps you to organize development projects in the ABAP Workbench and in Customizing, and then transport the changes between the SAP Systems and clients in your system landscape.
This documentation provides you with an overview of how to manage changes with the CTS and essential information on setting up your system and client landscape and deciding on a transport strategy. Read and follow this documentation when planning your development project.
For practical information on working with the Change and Transport System, see Change and Transport Organizer and Transport Management System.
41. When a program is created and need to be transported to prodn does selection texts always go with it? if not how do you make sure? Can you change the CTS entries? How do you do it?
ANS:-
42. What is the client concept in SAP? What is the meaning of client independent?
ANS:-
43. Are programs client dependent?
ANS:-
Yes.Group of users can access these programs with a client no.
44. Name a few system global variables you can use in ABAP programs?
ANS:-
SY-SUBRC,SY-DBCNT,SY-LILLI,SY-DATUM,SY-UZEIT,SY-UCOMM,SY-TABIX.....
SY-LILLI IS ABSOLUTE NO OF LINES FROM WHICH THE EVENT WAS TRIGGERED.
45. What are internal tables? How do you get the number of lines in an internal table?
How to use a specific number occurs statement?
ANS:-
i)It is a standard data type object which exists only during the runtime of the program.
They are used to perform table calculations on subsets of database tables and for re-organising the contents of database tables according to users need.
ii)using SY-DBCNT.
iii)The number of memory allocations the system need to allocate for the next record population.
46. How do you take care of performance issues in your ABAP programs?
Performance of ABAPs can be improved by minimizing the amount of data to be transferred.
The data set must be transferred through the network to the applications, so reducing the amount OF time and also reduces the network traffic.
Some measures that can be taken are:
- Use views defined in the ABAP/4 DDIC (also has the advantage of better reusability).
- Use field list (SELECT clause) rather than SELECT *.
- Range tables should be avoided (IN operator)
- Avoid nested SELECTS.
i)system tools
ii)field symbols and field groups.
ans:-
Field Symbols : Field symbols are placeholders for existing fields. A Field Symbol does not physically reserve space for a field,but points to a field which is not known until runtime of the program.
eg:- FIELD-SYMBOL
Field groups : A field group combines several fields under one name.At runtime,the INSERT command is used to define which data fields are assigned to which field group.
There should always be a HEADER field group that defines how the extracted data will be sorted,the data is sorted by the fields grouped under the HEADER field group.
47. What are datasets?
ANS:-
The sequential files(ON APPLICATION SERVER) are called datasets. They are used for file handling in SAP.
48. How to find the return code of a statement in ABAP programs?
ANS:-
Using function modules.
49. What are interface/conversion programs in SAP?
ANS :
CONVERSION : LEGACY SYSTEM TO FLAT FILE.
INTERFACE : FLAT FILE TO SAP SYSTEM.
50. Have you used SAP supplied programs to load master data?
51. What are the techniques involved in using SAP supplied programs?
Do you prefer to write your own programs to load master data? Why?
52. What are logical databases? What are the advantages/disadvantages of logical databases?
ANS:-
To read data from a database tables we use logical database.
A logical database provides read-only access to a group of related tables to an ABAP/4 program.
adv:-
The programmer need not worry about the primary key for each table.Because Logical database knows how the different tables relate to each other,and can issue the SELECT command with proper where clause to retrieve the data.
i)An easy-to-use standard user interface.
ii)check functions which check that user input is complete,correct,and plausible.
iii)meaningful data selection.
iv)central authorization checks for database accesses.
v)good read access performance while retaining the hierarchical data view determined by the application logic.
disadv:-
i)If you donot specify a logical database in the program attributes,the GET events never occur.
ii)There is no ENDGET command,so the code block associated with an event ends with the next event
statement (such as another GET or an END-OF-SELECTION).
53. What specific statements do you using when writing a drill down report?
ans:-
AT LINE-SELECTION,AT USER-COMMAND,AT PF.
54. What are different tools to report data in SAP? What all have you used?
ans:-
55. What are the advantages and disadvantages of ABAP/4 query tool?
56. What are the functional areas? User groups? and how does ABAP/4 query work in relation to these?
57. Is a logical database a requirement/must to write an ABAP/4 query?
59. What are Change header/detail tables? Have you used them?
60. What do you do when the system crashes in the middle of a BDC batch session?
ans:-
we will look into the error log file (SM35).
61. What do you do with errors in BDC batch sessions?
ANS:-
We look into the list of incorrect session and process it again. To correct incorrect session we analyize the session to determine which screen and value produced the error.For small errors in data we correct them interactively otherwise
modify batch input program that has generated the session or many times even the datafile.
62. How do you set up background jobs in SAP? What are the steps? What are the event driven batch jobs?
ans:-
go to SM36 and create background job by giving job name,job class and job steps(JOB SCHEDULING)
63. Is it possible to run host command from SAP environment? How do you run?
64. What kind of financial periods exist in SAP? What is the relavent table for that?
65. Does SAP handle multiple currencies? Multiple languages?
ans:-
Yes.
66. What is a currency factoring technique?
67. How do you document ABAP/4 programs? Do you use program documentation menu option?
68. What is SAPscript and layout set?
ans:-
The tool which is used to create layout set is called SAPscript. Layout set is a design document.
69. What are the ABAP/4 commands that link to a layout set?
ans:-
control commands,system commands,
70. What is output determination?
71. What are IDOCs?
ans:-
IDOCs are intermediate documents to hold the messages as a container.
72. What are screen painter? menu painter? Gui status? ..etc.
ans:-
dynpro - flow logic + screens.
menu painter -
GUI Status - It is subset of the interface elements(title bar,menu bar,standard tool bar,push buttons) used for a certain screen.
The status comprises those elements that are currently needed by the transaction.
73. What is screen flow logic? What are the sections in it? Explain PAI and PBO.
ans:-
The control statements that control the screen flow.
PBO - This event is triggered before the screen is displayed.
PAI - This event is responsible for processing of screen after the user enters the data and clicks the pushbutton.
74. Overall how do you write transaction programs in SAP?
ans:-
Create program-SE93-create transcode-Run it from command field.
75. Does SAP has a GUI screen painter or not? If yes what operating systems is it available on? What is the other type of screen painter called?
76. What are step loops? How do you program pagedown pageup in step loops?
ans:-
step loops are repeated blocks of field in a screen.
77. Is ABAP a GUI language?
ANS:-
Yes.
ABAP IS AN EVENT DRIVEN LANGUAGE.
78. Normally how many and what files get created when a transaction program is written?
What is the XXXXXTOP program?
ans:-
ABAP/4 program.
DYNPRO
79. What are the include programs?
ANS:-
When the same sequence of statements in several programs are to be written repeadly they are coded in include programs (External programs) and are included in ABAP/4 programs.
80. Can you call a subroutine of one program from another program?
ans:- Yes- only external subroutines Using 'SUBMIT' statement.
81. What are user exits? What is involved in writing them? What precations are needed?
82. What are RFCs? How do you write RFCs on SAP side?
83. What are the general naming conventions of ABAP programs?
ANS:-
Should start with Y or Z.
84. How do you find if a logical database exists for your program requrements?
ans:-
SLDB-F4.
85. How do you find the tables to report from when the user just tell you the transaction he uses? And all the underlying data is from SAP structures?
ans:-
Transcode is entered in command field to open the table.Utilities-Table contents-display.
86. How do you find the menu path for a given transaction in SAP?
ans:-
87. What are the different modules of SAP?
ans:-
FI,CO,SD,MM,PP,HR.
89. How do you get help in ABAP?
ans:-
HELP-SAP LIBRARY,by pressing F1 on a keyword.
90. What are different ABAP/4 editors? What are the differences?
ans:-
91. What are the different elements in layout sets?
ans:-
PAGES,Page windows,Header,Paragraph,Character String,Windows.
92. Can you use if then else, perform ..etc statements in sap script?
ans:-
yes.
93. What type of variables normally used in sap script to output data?
94. How do you number pages in sapscript layout outputs?
95. What takes most time in SAP script programming?
ANS:-
LAYOUT DESIGN AND LOGO INSERTION.
96. How do you use tab sets in layout sets?
97. How do you backup sapscript layout sets? Can you download and upload? How?
98. What are presentation and application servers in SAP?
ANS:-
The application layer of an R/3 System is made up of the application servers and the message server. Application programs in an R/3 System are run on application servers. The application servers communicate with the presentation components, the database, and also with each other, using the message server.
99. In an ABAP/4 program how do you access data that exists on a presentation server vs on an application server?
ans:-
i)using loop statements.
ii)flat
100. What are different data types in ABAP/4?
ans:-
Elementary -
predefined C,D,F,I,N,P,T,X.
userdefined TYPES.
ex: see in intel book page no 35/65
Structured -
predefined TABLES.
userdefined Field Strings and internal tables.
101. What is difference between session method and Call Transaction?
ans:-
102. Setting up a BDC program where you find information from?
ans:-
103. What has to be done to the packed fields before submitting to a BDC session.
ans:-
fields converted into character type.
104. What is the structure of a BDC sessions.
ans:-
BDCDATA (standard structure).
105. What are the fields in a BDC_Tab Table.
ans:-
program,dynpro,dynbegin,fnam,fval.
106. What do you define in the domain and data element.
Technical details like
107. What is the difference between a pool table and a transparent table and how they are stored at the database level.
ans:-
ii)Pool tables is a logical representation of transparent tables .Hence no existence at database level. Where as transparent tables are physical tables and exist at database level.
108. What is cardinality?
For cardinality one out of two (domain or data element) should be the same for Ztest1 and Ztest2 tables. M:N
Cardinality specifies the number of dependent(Target) and independent (source) entities which can be in a relationship.
SAP Workflow Items Sent To Everyone If Agent Not Determined
We have this problem,whenever a workitem does not determine a agent, it send the workitem to everyone.
This is causing lot of problems.
This is generally a two part issue:
1. At design time, you have defined the task as a 'general task' under the agent assignment.
2. At runtime, when the agent determination routine tries to identify the agent, it cannot. So, because it is a general task, the task is sent to everyone.
To resolve:
1. Instead of making it a general task, try to identify an actual list of 'possible' agents. This could be by positions, userIDs, Org Units, etc. Make this list your possible agents instead of defining it as a general task.
or
2. Make sure your logic for determining the agent always return an agent. If you are using a custom rule, then at the end of the logic check to see if an agent was determined and if not, identify a default agent (like a WF admin or business analyst) that can receive the item and investigate who to properly route it to.
FYI... if you go with option 1 and at runtime the logic fails to determine an agent, then an error message is sent to the WF admin instead of the task being sent to everyone.
Which Agent did execute the task in the Inbox?
Which FW system field does contain the agent, whom has executed a task in her inbox ?
If one of the agents executes task number 1 in her inbox, which system field do I have to use in task number 2 to find which agents did the thing ?
Make a workflow container for Actual Agent of type WFSYST-ACT_AGENT
and then in task 1 do the binding from task container to workflow container for actual agent.
This container then you can use in your next task to see who was the previous agent
How to delete an editor lock in sap?
A user created the ABAP program and set the "editor lock" checked-ON (in Program Attributes screen); which makes that user the only person to make any changes to the program.
The same user left the project a year ago, and now there is a need to change the program. How can we do that? Because if someone else tries to modify it, the system doesn't allow him/her saying that "the program is locked from any changes. Only original user can change it".
How do we resolve it? I know the checked-ON indicator is stored in TRDIR table, but that table cann't be maintained manually. Please suggest what to do?
The lock in an ABAP program is defined in table TRDIR, field EDTX. You must change the value 'X' by ' '.
Use the following example program to unlock your program editor lock:
REPORT sy-repid.
TABLES: TRDIR.
PARAMETERS: P_PROG LIKE TRDIR-NAME OBLIGATORY.
START-OF-SELECTION.
SELECT SINGLE * FROM TRDIR WHERE NAME = P_PROG.
IF SY-SUBRC = 0.
IF TRDIR-EDTX = 'X'.
MOVE ' ' TO TRDIR-EDTX.
MODIFY TRDIR.
WRITE: /'Editor Lock was removed from', P_PROG.
ELSE.
WRITE: /'Program', P_PROG, 'does not have an Editor Lock'.
ENDIF.
ELSE.
WRITE: /'No match found for program', P_PROG.
ENDIF.
How can I insert my company logo in the sap abap standard report?
It is not possible to print logo in the ordinary report, but it can done through ALV.
Write the code in Top-of-page event in ALV.
The following is the code for inserting the logo in ALV.
FORM TOP_OF_PAGE.
CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
EXPORTING
I_LOGO = 'ENJOYSAP_LOGO'
IT_LIST_COMMENTARY = GT_LIST_TOP_OF_PAGE.
ENDFORM.
sap abap program for Issuing an Unix Command from ABAP
* Issuing an Unix Command from ABAP
*
REPORT ZUNIX.
DATA UNIXCMD(50) TYPE C.
DATA: BEGIN OF ITAB occurs 0,
LINE(200),
end of ITAB.
PARAMETERS UNIXCOMM LIKE UNIXCMD
DEFAULT 'ls -ls /usr/sap/trans/data' LOWER CASE.
* Executing the system commands witin ABAP.
call 'SYSTEM' id 'COMMAND' field UNIXCOMM
id 'TAB' field ITAB-*SYS*.
EDITOR-CALL FOR ITAB DISPLAY-MODE.
Difference for Stock Transfer and Transfer Posting in sap
Questions: Tell me the difference between transfer postings and stock transfers. What are the material documents that are generated and what are the accounts hits.
Stock Transfer = physically stock transfer of goods,
Trasfer posting = may physical (or) logical (not physical) stock transfer of goods.
Transfer posting and stock transfer:
Transfer posting : plant to plant/ Storage location to Storage Location.
In which if the valuation area is same. i.e.
- Sloc to Sloc within one plant then there will be no accounting entry occurs.
- However if the its Sloc to Sloc but with two different plant. and valuation area+valuation price is diff then there will accounting doc and material doc created for the same.
Stock Transfer:
There are unrestricted stock, quality inspection stock, blocked stock. Also you can have GR Blocked stock, special stock too. It will update the quantity. *-- Madhura k
Stock Tranfer and Transfer Posting - Importances are same up to Plant to Plant . However Customer ( Client ) Prefer Stock Transfer than Transfer Posting.
See the Below Advantages of Stock Transfer more than Transfer Postings :
The transfer of stock using a stock transport order has the following advantages over the transfer of stock without a stock transport order:
- A goods receipt can be planned in the receiving plant.
- You can enter a vendor (transport vendor) in the stock transport order.
- Delivery costs can be entered in the stock transport order.
- The stock transfer order is part of MRP: Purchase requisitions that were created in MRP can be converted into stock transport orders.
- The goods issue can be entered using a delivery via Shipping (LE-SHP
- The goods receipt can be posted directly to consumption.
- The entire process can be monitored via the purchase order history.
However we need to do some times Plant to Plant Trasfer Postings only in some industires. This is based on Customer Requirement. *-- Pavan G Kulkarni
How many stock transfer process are avaikable in SAP?
Like 1)Two step stock transfer (MM/SD) .
2)Two steap stock transfer ( MM only) Move type 303& 305.
3) One step stock transfer Move type 301.
Stock Transport Order (STO)
Without STO
One step stock transfer Move type 301.
Two step stock transfer ( MM only) Move type 303& 305.
doc.type: UB
GI:351, GR:101
STO with delivery:
GI:641, GR:101
delivery type:NL
STO with delivery and billing:
GI:643, GR:101
delivery type:NLCC , billing type:IV
Add a Field To New Condition Table in Pricing in SAP
Add a field to a new condition table in Pricing (Condition Technique):-
I will explain you the process with below example...Please follow steps in below sequence-
Try to add the filed from the field catalog. In case the required combination field is not there, you can add the field through the following process to filed catalog and create the condition table. It is most common that one or other time we need to use this function while configuring multi tasking & complex Pricing Architecture.
Here I'm giving a simple guide to add fields to the Pricing Field Catalogues:
For example you want to use field PSTYV ('Sales document item category') that is included in structure KOMP ('Pricing Communication Item') as a key for a condition table.
When you create a condition table (Transaction V/03), however, the system does not propose the field in the field catalog.
Condition access, field catalog, allowed fields, KOMG, KOMK, KOMP, KOMPAZ, KOMKAZ, PSTYV are the other terms which we need to know about, to add Fields.
Reason and Prerequisites:
For technical reasons, field PSTYV was included in structure KOMP, however, not in structure KOMG ('Allowed Fields for Condition Structures').
Proceed as follows:
1. Call up the ABAP Dictionary (Transaction SE11) and create data type ZZPSTYV. Choose PSTYV as a domain.As a short text, you can use, for example, 'ZZ - sales document item category' and as a field label, you can use the field labels of PSTYV.Save, check and activate your entries.
2. Call up structure KOMPAZ in the ABAP Dictionary (Transaction SE11) in the change mode and make the following entry:
Component Component type:
ZZPSTYV ZZPSTYV
Save, check and activate the change you made.
3. Note:Because of the change in structure KOMPAZ, field ZZPSTYV is now known in structures KOMG and KOMP because structure KOMPAZ is included in both structures.
4. Call up Transaction SPRO. Navigate to 'Sales and Distribution -> Basic Functions -> Pricing -> Pricing Control' and execute 'Define Condition Tables'.
Choose 'Conditions: Allowed fields' and include ZZPSTYV as a new entry.
5. Note:Now you can use field ZZPSTYV as a key field when you create a condition table Axxx.
6. Supply the new field you defined by including the following source code line in USEREXIT_PRICING_PREPARE_TKOMP:
MOVE xxxx-PSTYV TO TKOMP-ZZPSTYV.
In order processing you find the user exit in Include MV45AFZZ, and in billing document processing you find it in Include RV60AFZZ.
Consider that you can also use this note as a help if you want to use other customer-specific fields as key fields in a condition table.
For header fields, use structure KOMKAZ instead of structure KOMPAZ and
USEREXIT_PRICING_PREPARE_TKOMK instead of
USEREXIT_PRICING_PREPARE_TKOMP.
Subscribe to:
Posts (Atom)