Get PERAS Returning Mulitple Records For PERNR

Question

I have a program that is preloading PNPPERNR with PERNRS from a database before the GET PERAS statement.  We just did an upgrade of some of our HR SAP Components and now the GET PERAS statement is triggering every time if sees a given PERNR in the PNPPERNR whereas before it only did it once even though the number of PERNRS in the PNPPERNR table is exactly the same.
We upgraded all of our SAP-HR* components from Release 604 SP-Level 67 to SP-Level 75 and the EA-HR* from Release 605 SP-Level 0044 to SP-Level 0052.   We've tested the program in a client that hasn't been updated and then ran in an updated one and that is how we found the problem.  Obviously SAP has updated something.  Has anybody experienced this problem?

Answer 1

Hello,
The max rows operation is applied independently from the firstResults opperation, and is applied first. So in setting max rows to 2, you are getting rows 1 and 2, and then by applying firstResults=2, you are skipping past the second row, hence getting 0 back. This is because Max rows is applied to the statement before execution, where as firstResult is applied to the returned resultset. You will need to use firstresults=2 and maxrows=4 to get rows 3+4.
Also, you can change the query parameters on a named query. It is not recommended though only because named queries are stored on the session, and so in a multi-threaded app can cause problems when two threads try to execute the same query with, for example, different max results set. In a multithreaded environment you might want to get the named query and clone it before changing first/max rows, but for single threaded app there shouldn't be any problems.
Best Regards,
Chris