Title :
What you always wanted to know about Datalog (and never dared to ask)
Author :
Ceri, Stefano ; Gottlob, Georg ; Tanca, Letizia
Author_Institution :
Dept. of Math., Modena Univ., Italy
fDate :
3/1/1989 12:00:00 AM
Abstract :
Datalog, a database query language based on the logic programming paradigm, is described. The syntax and semantics of Datalog and its use for querying a relational database are presented. Optimization methods for achieving efficient evaluations of Datalog queries are classified, and the most relevant methods are presented. Various improvements of Datalog currently under study are discussed, and what is still needed in order to extend Datalog´s applicability to the solution of real-life problems is indicated
Keywords :
logic programming; query languages; relational databases; Datalog; database query language; logic programming; optimisation methods; relational database; semantics; syntax; Amplitude shift keying; Artificial intelligence; Books; Database languages; Logic programming; Merging; Optimization methods; Programming environments; Query processing; Relational databases;
Journal_Title :
Knowledge and Data Engineering, IEEE Transactions on
