CodePudding user response:
Play a who runs AWR report, look at the TOP N the SQL, and focus on the ORDER BY IO part,CodePudding user response:
If temporary table space is really tight currently, it is recommended that the query v $sort_usage view, combining with the v $session, v $SQL, you can know the current cost of temporary tablespace SQL and what is operation, and make the corresponding optimization, if now is calm, then use ~ # 1 building methods