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ORA-01451: column to be modified to NULL cannot be modified
to NULL

Answer Posted / guest

Cause: the column may already allow NULL values, the NOT
NULL constraint is part of a primary key or check constraint.

Action: if a primary key or check constraint is enforcing
the NOT NULL constraint, then drop that constraint.

Please add more information about this Error

Is This Answer Correct ?    1 Yes 1 No



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