Is there a way to determine (or trace) which individual statements are
causing tempspace to be allocated to a session? I've got a databases
where half a dozen sessions seem to gradually allocate more and more
tempspace (as measured by v$sort_usage), and then never release it.=20
Eventually they acquire almost all of the available space, which of
course causes a flurry of ORA-1652
errors from other sessions.
At the moment, I'm examining a trace from one of these sessions. So
far, I don't see anything which could cause this behaviour... a few
inserts, some relatively simple selects, nothing particularly complex.
Any suggestions on how to troubleshoot this sort of issue?
The DB in question is Oracle 22.214.171.124.0 (32-bit), running on Solaris 8.