Oracle® Database 8i | 9i | 10g | 11g | 12c | 18c | 19c Error Codes
Information for Database Error Code ORA-12020: materialized view [string] is not registered
ORA-12020: materialized view [string] is not registered
Cause: An attempt was made to unregister a materialized view that is not registered.
Action: No action required.
Error Type: ORA
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