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Select Query With Parallel Hangs After Upgrade From 11g
(Doc ID 2765200.1)
Last updated on JULY 20, 2024
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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