Referential integrity (RI)is a method for ensuring the “correctness” of data within a DBMS. People tend to oversimplify RI, stating that it is merely the identification of relationships between ...

There are two categories of integrity constraints: General constraints, which allow you to restrict the data values that are accepted for the variables in a single data file, such as requiring that ...

Ensuring the integrity of the organization’s databases is a key component of the DBA’s job. A database is of little use if the data it contains is inaccurate or if it cannot be accessed due to ...