Database integrity

Database integrity: Database integrity ensures that data entered into the database is accurate, valid, and consistent. Any applicable integrity constraints and data validation rules must be satisfied before permitting a change to the database.

Three basic types of database integrity constraints are:

Entity integrity, not allowing multiple rows to have the same identity within a table.

Domain integrity, restricting data to predefined data types, e.g.: dates.

Referential integrity, requiring the existence of a related row in another table, e.g. a customer for a given customer ID.

See also

Data integrity

Bit rot

Categories:
Data modeling
Data quality

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Database integrity

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