How can I reduce my Z report access time ?

Question

Dear Friends,
I have to access z report , but its processing time is very long , Is this possible that if i access report to give some
input parameters , now next time if I access the same  report with the same parameter then access time is low ,
I mean if I am accessing the report first time then if it takes approx 8 hours and then i save this access
sequence somewhere then if I am accessing this report next time with the same input parameters then
it will take only 10 min ,
Is this possible ? if yes then How ?
Suggest ....
Regards ,
Rihan
SAP-abaper
Edited by: rihano7 mansoori on Oct 18, 2011 11:46 AM

Answer 1

Dear friend,
to reduce your z program execution time , you need to work out very simple few steps.
check t code sm30 and check your z program's execution time.
if your database execution time is too long then you have to perform following steps to reduce your execution time.
1 ) check your I/O database query.
2 ) use select <field name> ... instead of select * from..
3 ) if you are using your database query in any loop or internal table loop then remove that query and use internal table inside that loop.
3 ) if you are playing with bunch of data then you need to create internal tables for the specified tables and use internal table
as standard database table so that your program performance going to be better.
there are more features provided by sap it self you need to explore more.
say for it.   index,buffering...un-necessary occupied memory n all...
hope for the best programming.
good luck
Avirat