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Integrity constraint

<database> A constraint (rule) that must remain true for a database to preserve integrity.

Integrity constraints are specified at database creation time and enforced by the database management system.

Examples from a genealogical database would be that every individual must be their parent's child or that they can have no more than two natural parents.

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Integrated Services Digital Network
Integrated Systems Architecture
Integrated Systems Laboratory
integration testing
integrity constraint
relational database
Intel 4004
Intel 4040
Intel 486
Intel 486DX
Intel 486SX

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