Data Quality: The measure of accuracy, completeness, and reliability of data stored in a database. Functional Dependency (FD): A relationship between attributes in a relational database where one ...

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 ...

Now for BCNF, we have a slightly different circumstance. This is because here, an attribute within a composite candidate key has a functional dependency on a non-key attribute. Again, since the ...

Contrast with functional dependency. The Goal Is Eliminate Transitive Dependencies When designing a database, "third normal form" is achieved by eliminating transitive dependencies in each table.

Relaxed Functional Dependency: An extension of FDs that permits approximate matches and accommodates variations in data, thus allowing for more flexible data integrity rules.