Answer / guest

Cause: For a materialized view with UNION ALL to be fast
refreshable, each query block must conform to a fast
refreshable materialized join view or materialized aggregate
view.

Action: Check each query block in the UNION ALL to ensure it
is either a materialized view with joins or aggregates.

Please add more information about this Error

DRG-10851: Invalid grammar string specified for query template

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ORA-01268: invalid TEMPFILE clause for alter of permanent TABLESPACE

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NNL-00580: register_ns: <name server> <address> <domain>

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NNC-00417: name "string" already exists

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EXP-00017: feature "string" is needed, but not present in database

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ORA-31665: mode can only be defaulted for IMPORT and SQL_FILE operations

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ORA-30502: system triggers cannot have INSERT, UPDATE, or DELETE as triggering events

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RMAN-04015: error setting target database character set to string

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ORA-14645: STORE IN clause cannot be specified for Range List objects

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ORA-01215: enabled thread string is missing after CREATE CONTROLFILE

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ORA-07441: function address must be aligned on string byte boundary

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ORA-25009: Nested table clause allowed only for INSTEAD OF triggers

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