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What Are Referential Integrity, Dependency Constraint And Domain Integrity?

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Referential INTEGRITY: Referential integrity ENSURES that an object identifier in one object ACTUALLY refers to an object that EXISTS.
Dependency constraints: Dependency constraints ensure that attribute dependencies, values are maintained CONSISTENTLY, where the value of one attribute is calculated from other attributes, are maintained consistently.
Domain integrity: Domain integrity ensures that attributes only hold permissible values.

Referential Integrity: Referential integrity ensures that an object identifier in one object actually refers to an object that exists.
Dependency constraints: Dependency constraints ensure that attribute dependencies, values are maintained consistently, where the value of one attribute is calculated from other attributes, are maintained consistently.
Domain integrity: Domain integrity ensures that attributes only hold permissible values.


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