Hi Srinivas,
1.Why we need performance tunning?
Ans : The main purpose of performance tuning is to improve the over all performance of the SAP ERP system.Since SAP is a huge a package and involves three layers so we should try to improve the performance tuning as much as possible.The important things is we have to minimise the databse interaction as much as possible.
2.How to develop this performance tunning?
Ans : You have to keep in mind while developing any object how much it impove u r performance for an example if u r using for all entries u have to delete all duplicates and sort etc so if u follow like that then the end result will be a good product.
3.What is the pre requisites of performance tunning?
You have to go through all the standard performance tuning concepts and some that we learn from our own experience.
4.What is the main feature of this performance tunning?.
SAP has a tcode SE30 and ST05 through which you can test the performance of any object including database interaction through ST05 so these tcodes just provide u if there are any backlogs so that u can tune those.
award points if it helps .
Ramesh.
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