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integrity constraint - 1 dictionary results

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.
(1995-11-11)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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