ORA-12008: error in materialized view refresh path
Cause: Table SNAP$_<mview_name> reads rows from the view MVIEW$_<mview_name>, which is a view on the master table (the master may be at a remote site). Any error in this path will cause this error at refresh time. For fast refreshes, the table <master_owner>.MLOG$_ is also referenced.
Action: Examine the other messages on the stack to find the problem. See if the objects SNAP$_<mview_name>, MVIEW$_<mview_name>, .@, .MLOG$_@ still exist.
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