This is a common scenario when the SQL_ID flipped to a different, possibly a suboptimal execution plan or PHV and causes disaster to the database performance. This video is all about identifying the issues and how to tackle them proactively.
Files used: github.com/fat... (1.sql) and github.com/fat... (2.sql)
Негізгі бет Oracle SQL Plan Hash Value Flip : How to create SQL Profile identify and Fix
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