column is referenced in a multi-column constraint

Solution ID:ORA-12991

Type: Oracle

Cause

An attempt was made to drop a column referenced by some constraints.

Actions

Drop all constraints referencing the dropped column or specify CASCADE CONSTRAINTS in statement.

Try the following links for this error:


http://docs.oracle.com/cd/E16655_01/server.121/e26079/e12700.htm


https://community.oracle.com/message/10224925


https://community.oracle.com/message/4284105


https://community.oracle.com/message/9856001


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