SAP---ABAP

Monday, May 12, 2008

ABAP/4 Interview Qns and Answers

23) What is SAP Script? What is the purpose of SAP Script? Difference between
SAP Script and Report?


Ans SAP Script – It is the integrated text management system of the SAP R/3 System. Two types – PC Editor & Line Editor.

Reports - It is the way to display data fetched from database table onto screen or directly output it to a printer. Two types – Classical and Interactive.

24) What is the use of occurs in internal table? Can u change occurs value in program?


Ans Use of Occurs - If you use the OCCURS parameter, the value of the INITIAL SIZE of the table is returned to the variable

Data : Begin of ITAB occurs 0,

End of ITAB.

Occurs or Initial Size – to specify the initial amount of memory that should be assigned to the table.

Yes, we can change the occurs value in program but output remains the same.



25) Difference between SY-TABIX and SY-INDEX? Where it is used?
Can u check SY-SUBRC after perform?

Ans SY-TABIX - Current line of an internal table. SY-TABIX is set by the statements below, but only for index tables. The field is either not set or is set to 0 for hashed tables.

  • APPEND sets SY-TABIX to the index of the last line of the table, that is, it contains the overall number of entries in the table.
  • COLLECT sets SY-TABIX to the index of the existing or inserted line in the table. If the table has the type HASHED TABLE, SY-TABIX is set to 0.
  • LOOP AT sets SY-TABIX to the index of the current line at the beginning of each loop lass. At the end of the loop, SY-TABIX is reset to the value that it had before entering the loop. It is set to 0 if the table has the type HASHED TABLE.
  • READ TABLE sets SY-TABIX to the index of the table line read. If you use a binary search, and the system does not find a line, SY-TABIX contains the total number of lines, or one more than the total number of lines. SY-INDEX is undefined if a linear search fails to return an entry.
  • SEARCH FOR sets SY-TABIX to the index of the table line in which the search string is found.

SY_INDEX - In a DO or WHILE loop, SY-INDEX contains the number of loop passes including the current pass.

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