My Oracle Support Banner

Queries Not Using The Index Scan Post The Oracle Upgrade To 19c (Doc ID 2948797.1)

Last updated on OCTOBER 03, 2023

Applies to:

Oracle Database - Standard Edition - Version 19.18.0.0.0 and later
Information in this document applies to any platform.

Symptoms

-
1. Database upgraded from 12.1.0.2 to 19c.
2. In the 19c environment query executes in 3 minutes, however in 12c execution time is 10 seconds.

Changes

 Database upgrade from 12C to 19C

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.