Define The Integrity Rules?

1.	Define The Integrity Rules?
Answer» There are two Integrity RULES. Entity Integrity: States that Primary KEY cannot have NULL value Referential Integrity: States that Foreign Key can be EITHER a NULL value or should be Primary Key value of other relation. There are two Integrity rules.

Answer»

There are two Integrity RULES.

Entity Integrity: States that Primary KEY cannot have NULL value
Referential Integrity: States that Foreign Key can be EITHER a NULL value or should be Primary Key value of other relation.

There are two Integrity rules.

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