ORA-02256: number of referencing columns must match referenced columns
Cause: The number of columns in the foreign-key referencing list is not equal to the number of columns in the referenced list.
Action: Make sure that the referencing columns match the referenced columns.
Cause: The number of columns in the foreign-key referencing list is not equal to the number of columns in the referenced list.
Action: Make sure that the referencing columns match the referenced columns.
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