ABAP代码性能改善

Performance techniques in abap programing

1. Never use select *
2. Never use select statement inside the loop
3. Never use nested loops
4. Use always key fields in where conditions
5. Use always for all entries for joining tables
6. Check the parent table whether it is initial or not while using for all entries
7. Use binary search in read statement to improve performance
8. Sort the data in internal table while using binary search.
9. Use sy-subrc check for read statement
10. Follow all the naming conventions in coding part