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What Are Constraints? Explain Different Types Of Constraints.

Answer»

Constraints enable the RDBMS enforce the integrity of the database automatically, WITHOUT needing you to CREATE triggers, RULE or defaults.
Types of constraints: NOT NULL, CHECK, UNIQUE, PRIMARY KEY, FOREIGN KEY

Constraints enable the RDBMS enforce the integrity of the database automatically, without needing you to create triggers, rule or defaults.
Types of constraints: NOT NULL, CHECK, UNIQUE, PRIMARY KEY, FOREIGN KEY


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