WRONG RESULT via DBLINK with left outer join

(Doc ID 2342254.1)

Last updated on DECEMBER 27, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

WRONG RESULT via DBLINK with left outer join.
The SQL return "no rows selected".

Changes

This problem may occur if all the conditions below match.

- Two or more remote tables or views are used
- There is HASH JOIN in execution plan
- left-outer join of remote tables exist

Cause

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