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Select Query With Parallel Hangs After Upgrade From 11g (Doc ID 2765200.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Information in this document applies to any platform.

Symptoms

In this case, SELECT Query with parallel hint hangs after upgrade Database from 11g to 19c. Parallel query execution did not get completed.

Short stack shows like below.

..............Short Stack..................  

Changes

 Database was upgraded from 11g to 19c

But, this issue may occur in 12c,18c as well.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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