Mview Comments Missing After Out Of Place Refresh - 12c
(Doc ID 2399854.1)
Last updated on SEPTEMBER 06, 2021
Applies to:Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Information in this document applies to any platform.
Out-of-Place Mview Refresh Option was introduced in Oracle Database 12c Release 1 to improve materialized view refresh performance and availability. This refresh option uses outside tables during refresh, Where as the existing "in-place" refresh directly applies changes to the materialized view container table. In out-of-place refresh method, the entire or affected portions of a materialized view are computed into one or more outside tables.
While doing Out-of-Place Refresh, Comments on the original materialized view container table are not copied to the outside table.
Mview creation with comment
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