A constraint is defined as INITIALLY IMMEDIATE but is DISABLED. You attempt to ENABLE VALIDATE the constraintWhich two are true?

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  • A、DML is prevented while the constraint is being enable
  • B、The command does not validate existing rows.
  • C、The command fails if any table row violates the constraint.
  • D、The constraint is only enforced for rows inserted or updated after enabling the constraint.
  • E、xisting rows that violate the constraint are permitte
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