What Is Entity Integrity?

Entity integrity is one of the three rules of database integrity in a relational model. The rule of entity integrity requires that each data table must have a primary key, and all fields that are primary keys must have unique and non-null attributes.

Physical integrity

Entity integrity
Entity integrity
Data integrity (Data integrity)
  • Relational database management system
  • SQL
  • Referential integrity

IN OTHER LANGUAGES

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