Oracle 11g - How to optimize slow parallel insert select?

Question

we want to speed up the run of the parallel insert statement below. We are expecting to insert around 80M records and it is taking around 2 hours to finish.

Answer 1

Try using more bind variables, especially where nested loops might happen. I've noticed that you can use it in cases like

CREATE_DT >= :YOUR_DATE instead of CREATE_DT >= sysdate - 60 

I think this would explain why you have 180 million executions in the lowest part of your execution plan even though the whole other part of the update query is still at 8 million out of your 79 million.