Friday, October 14, 2016

12c: Updates to Fast-Refresh Materialized Views with joins are lost after DB upgrade

An interesting article on My Oracle Support, "Updates Lost to Fast-Refresh Materialized Views with Joins After Upgrade to 12c" from document ID 2186836.1, tells us that an upgrade from 12.1.0.1 to 12.1.0.2 can negatively impact your fast-refresh materialized views with joins!  It seems that the system "covers up" the problem by having the last update date updated while the data does not get updated!!

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