Relational Database Management System (RDBMS) Question:
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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.
► 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.
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