Outer Join Using Oracle Join Operator (+) Is Converted To Simple Join Silently

(Doc ID 2303412.1)

Last updated on SEPTEMBER 05, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 9.0.1.0 and later
Information in this document applies to any platform.

Symptoms

 Outer Join is converted to simple join silently when Oracle outer join operator(+) is used in one of the join conditions and is not mentioned on other join conditions upon the same tables. It does not apply to ANSI join syntax.

Changes

 Using oracle-specific outer join semantics wrongly.

Cause

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