The Expressive Power of Temporal Relational Query Languages.

Abdullah Uz Tansel Erkan Tin

Published in: IEEE Trans. Knowl. Data Eng. (1997)

Keyphrases

relational query languages
expressive power
query language
first order logic
relational algebra
data complexity
computational properties
temporal information
transitive closure
relational model
relational data
temporal data
databases
relational calculus
relation algebra
constraint query languages