SAP ABAP Programming TIPS & Tricks

SAP ABAP Programming Tips & Tricks

 

1. Use the CHECK command instead of an IF statement whenever possible.

2. Use the ON CHANGE OF command

3. Use the EXIT command to leave a loop structure as soon as a specified condition is met.

4. Use APPEND instead of COLLECT to add entries to an internal table.

5. Make use of CASE structures in place of extensive nested IF’

6. Use the FREE <table> command once the program has completed using the table.

7. When using the SORT statement, always specify the sort key.

8. Use the BINARY SEARCH, when performing a direct read on an internal table

9. Run Program RSVARENT, this will allow you to cancel the protected variant.

10. Incase if you made some changes like the field length, or changed the type, run the program RSVARFIT, it will allow you to adjust variants to modified selection criteria.

11. Have any obsolete variants? Run the program RSVARDOC

12. What to find out were a particular variant is used in SAP? Run the program RSVARVAR. It will list the programs where ever the variant name is used.

13. Use Parameter ID, is a three character ID that represents specific SAP field

14. Use WHERE clause in your SELECT statement.

15. Use inner join for matching record.

16. Use HASHED tables where-ever possible. Otherwise SORTED tables. STANDARD tables should be the last choice.

17.  To hide zero value in smartforms use &wa-variable(CZ)&

 

PERFORMANCE ANALYSIS.

1. ST05

2. SAT

3. ST12  = ST05 +  SAT

4. Code Inspector  ( Program - >  check - > Code Inspector)