SELECT column_name_1, <column_name_2> FROM table_name alias WHERE object_name IS DANGLING;
Location 1 |
The SELECT clause for selecting attributes from the object table
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Location 2 |
The FROM clause for specifying the name of the object table
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Location 3 |
The IS DANGLING clause
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validation_clauses { VALIDATE REF UPDATE [ SET DANGLING TO NULL ] | VALIDATE STRUCTURE [ CASCADE { FAST | COMPLETE } ] [ into_clause ] { OFFLINE| ONLINE } }