Relational Database

Any database designed according to the set theory principles defined by E. F. Codd¹.

Be advised that implementing a database using a Relational Database Engine does not make it a Relational Database. You gots to follow Codd’s rules!

See also the related exegesis.

Footnotes

1. Codd, E.F. (1970). “Relational Completeness of Data Base Sublanguages”. Database Systems: 65–98.[↩]