A *referential integrity constraint* in the Entity Data Model (EDM) is similar to a referential integrity constraint in a relational database. In the same way that a column (or columns) from a ...

The term "data integrity" can mean different things to different people, but the most difficult and pervasive problem facing organizations these days is the semantic integrity of the data. As ...

Abstract: Key and referential constraints are the two main integrity constraints in database applications. These constraints can be enforced by the Database Management System automatically. Any ...

A new potential characteristic of a SAS data set known as integrity constraints has been added for SAS Version 7 or Version 8. Integrity constraints are a set of data validation rules that preserve ...