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Select For Update Statement With a Subquery Returns Wrong Results (Doc ID 2277991.1)

Last updated on MARCH 12, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

A Select for update statement with a subquery returns wrong result after waiting for update statement to commit.

The problem can be demonstrated in the Example test case below: (Select for update in Session 2 returns 1 (wrong result) instead of 2 (correct result).

TEST CASE:

Changes

 None

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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