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referential integrity

   Also found in: Acronyms, Wikipedia 0.03 sec.

referential integrity

A database management safeguard that ensures every foreign key matches a primary key. For example, customer numbers in a customer file are the primary keys, and customer numbers in the order file are the foreign keys. If a customer record is deleted, the order records must also be deleted; otherwise they are left without a primary reference. If the DBMS does not test for this, it must be programmed into the applications.

(database)referential integrity - A collection of properties which should be possessed by data in a relational database.

For example, in a database of family members, if we enter A as a spouse of B, we should also enter B as a spouse of A. Similarly, if we remove one end of the relationship we should also remove the other.


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Without properly correlating the backup and recovery processes, each database may maintain independent referential integrity, but the correlation between the two may be lost.
Planning for backup and recovery: the key elements for a successful ... by Dow, James / Computer Technology Review
stale logins) and checks the referential integrity of user names.
DATABASE SCANNER MANAGES SECURITY OF MICROSOFT SERVERS by Online Product News
the ability to split a table into two tables and maintain full referential integrity
New SQL Refactor From Red Gate Delivers "Must-Have" Functionality for ... by Business Wire
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