In rdbms the constraint that no key attribute may be null is referred as
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In RDBMS, the constraint that no key attribute (column) may be NULL is referred to as: Referential integrity.
Explanation:
In Simple Words, you can say it as " primary-key constraint" .
* no duplication.
* no null value.
* uniquely identified.
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Answer:
In RDBMS, the constraint that no key attribute (column) may be NULL is referred to as: Referential integrity.
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