Running multiple instances of program in parllel processing.

Question

Hi Experts...
We have an issue where we need to update huge set of data (say more than 2000000), update is simple where some BI table needs to be updated for few fields.
Now issue is that if at one go this update is done then there is memory issue, system is not able to extend the internal table beyond a permitted memory.
For this there may be some chanes which could be done in report RSMEMORY but business does not want this way.
I want to know what does "running multiple instances of a program in parllel processing, one job does not have to update the whole table".
Program is ready but simply running program without any input on the selection screen is picking all data and ending up in a short dump since there is huge data in the BI table.
What is the best possible way to update table through program where there is an issue of Huge data.
Do we have any expert comments on this ?
Thanks & Regards,
Mark

Answer 1

Hope this gives some direction !
Bundling using Function Modules for Updates
If you call a function module using the statement CALL FUNCTION ... IN UPDATE TASK, the function module is flagged for execution using a special update work process. This means that you can write the Open SQL statements for the database changes in the function module instead of in your program, and call the function module at the point in the program where you would otherwise have included the statements. When you call a function module using the IN UPDATE TASKaddition, it and its interface parameters are stored as a log entry in a special database table called VBLOG.
http://help.sap.com/saphelp_nw70/helpdata/en/41/7af4bfa79e11d1950f0000e82de14a/content.htm
Rgds
Sameer