relational calculus
<database> An operational methodolgy, founded on predicate calculus,
dealing with descripitive expressions that are equivalent to the operations of
relational algebra. Codd's reduction algorithm can convert from relational
calculus to relational algebra.
Two forms of the relational calculus exist: the tuple calculus and the domain
calculus.
["An Introduction To Database Systems" (6th ed), C. J. Date, Addison Wesley].
(1998-10-05)
Nearby terms:
reinvent the wheel « relation « relational algebra «
relational calculus » relational database »
relational database management system » relational
data model
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