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ABAP

1 What are Field Groups?
Ans: A group that combines several fields fewer than one name, at runtime, the INSERT command is used to define which data fields are assigned to which field group are called Field Groups. It should always be a HEADER field group that defines how the extracted data will be sorted; the fields grouped under the HEADER field group sort the data.
2 In SAP what are interface and conversion programs?
Ans: In SAP Interface Program is a Flat File To SAP System and Conversion means Legacy System To Flat File.
 
3 What are the Datasets in SAP?
Ans:

The sequential files on Application Server that are used for file handling in SAP are called as Datasets.

 
4 What care should be taken for the performance issues in ABAP Programs?
Ans:

The care that has to be taken for the performance issues in ABAP programs by minimizing the amount of data to be transferred, dataset must be transferred through the network applications, so reducing the amount of time and also reduces the network traffic.
There are some important measures that are to be taken:

  • As defined by ABAP/4 DDIC, the views are used.
  • Should avoid nested Selects.
  • Instead of using SELECT * its better to use the field list SELECT clause.
  • Should avoid the Range Tables.
 
5 Which module is used to find the return code of a statement in ABAP programs?
Ans:

The return codes of a statement in ABAP programs are mostly used in function module.

 
6 What are Field Symbols?
Ans:

Field Symbols are the place holders for an existing fields, it does not physically reserve space for a field, but points to a field which is not known until the runtime of a program. For example the Field Symbol is <FS> [<TYPE>].

 
7 How to get number of lines in an internal table and what are the internal tables?
Ans:

The standard data type that object which exists only during the run time of the program, which are used to perform table calculations on subsets of database tables and for reorganizing the contents of a database tables according to user needs. The system needs to allocate for the next record population by the number of memory allocations.

 
8 List few system global variables that are used in ABAP Programs? Is the programs client dependent?
Ans:

SY-LILLI is absolute number of lines from which the event was triggered, and some of the few system global variables are SY-SUBRC, SY-DBCNT, SY-LILLI, SY-DATUM, SY-UZEIT, SY-UCOMM, SY-TABIX.
Coming the program it is purely a client dependent since the group of users can access these programs with a client number.

 
9 Explain about CTS?
Ans:

CTS is nothing but Change and Transport System it is a tool that helps to organize development projects in ABAP Workbench and in Customizing, and then transport the changes between the SAP systems and clients in the system landscape. This documentation provides with an over view 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.

 
10 What is the procedure to validate the selection criteria of a report and to display the initial values in a selection screen?
Ans:

To validate the selection criteria of a report, match code objects are used. And coming to display the initial values in a selection screen the options are used: Parameters <name> default ‘xxx’ and select options <name> for Spfli-carrid.

 
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