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Rules of Referential Integrity and Overriding

Describe the default rules for enforcing referential integrity constraints. Explain how referential integrity actions can be used to override the default referential integrity constraints.

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Explain Rules for Referential Integrity Constraints

Describe the default rules for enforcing referential integrity constraints. Explain how referential integrity actions can be used to override the default referential integrity constraints.

A referential integrity rule is a rule defined on a field or set of fields in one table that guarantee that the values in that key match the values in a key in a related table.

Referential integrity also clearly defines the rules that would indicate what types of data manipulation are allowed on ...

Solution Summary

It shows what the rules in order to enforce referential integrity constraints and also how to overiride these constraints as may be needed in some cases.

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