ORA-23313: object group "string"."string" is not mastered at strin
Cause: The group name is null, the group name is misspelled, the invocation database is not a master, or the invocation database does not believe the given database is a master
Action: If the given group name was correct, connect to a current master and retry the request, make the invocation database a master with add_master_database, or use switch_mview_master if the invocation database is a materialized view site
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