Oracle Solution for Error ora-12991
ORA-12991: column is referenced in a multi-column constraint
What triggered the Error:
An attempt was made to drop a column referenced by some constraints.What should we do to fix it:
Drop all constraints referencing the dropped column or specify CASCADE CONSTRAINTS in statement.
If this was not sufficient go over to:
Oracle Official Support Knowledge Center
Or maybe those geeks at: StackOverflow Board
Or maybe those geeks at: StackOverflow Board
