ORA-12015 when Creating Fast Refresh Mview on a View with Joins

(Doc ID 2374422.1)

Last updated on MARCH 15, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1 and later
Information in this document applies to any platform.

Symptoms

You receive the error "ORA-12015: cannot create a fast refresh materialized from a complex query" when trying to create a fast-refresh materialized view that is based on a view; the view has joins.  

Example:

 

Cause

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