OK, I have a function that finds records that changed in a set of tables and attempts to insert them into a data warehouse.
There's a large outer loop of candidate rows and I inspect them to see if the values really changed before inserting. My problem is that when I look to see if the row exists in the warehouse already, based on some IDs, it fails when an ID is NULL. The ID is nullable, so that's not a problem. But I'm forced to write an IF statement looking for the potential NULL and write 2 queries: IF omcr_id is null select * from .... WHERE omcr_id is NULL AND ... ELSE select * from .... WHERE omcr_id=candidate.omcr_id AND .... END IF; IF FOUND ... Is there a way to do the lookup in one statement?? This could get ugly quick. I'm using v7.4. Thanks. -Don -- Donald Drake President Drake Consulting http://www.drakeconsult.com/ 312-560-1574 ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
