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Select from DBA_MVIEWs is very slow in 11g. (Doc ID 1322308.1)

Last updated on OCTOBER 22, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.1 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.


Performance of the query is very slow when queried as :-
select * from dba_mviews where mview_name='<name>';

When the same query is executed but excluding the columns NUM_FRESH_PCT_REGIONS & NUM_STALE_PCT_REGIONS it runs fast.


From 11g onwards, two new columns has been added in the DBA_MVIEWS view i.e NUM_FRESH_PCT_REGIONS & NUM_STALE_PCT_REGIONS.


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