A direct relationship between data elements in a relational database. Functional dependency (FD) states that one data element is dependent on another. For example, social security number (SSN), ...

The integrity of database systems is increasingly dependent on maintaining high data quality while enforcing robust consistency rules. Data quality encompasses the accuracy, completeness, and ...

An indirect relationship between data elements in a database. For example, social security number is a transitive dependency of date-of-birth (SSN->DOB), because it is dependent on name (SSN->NAME), ...