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Normalisation of database expressions involving calculations

By S. van Denneheuvel and G.R. Renardel de Lavalette

Abstract

In this paper we introduce a relational algebra extended with a calculate operator\ud and derive, for expressions in the corresponding language PCSJL, a\ud normalisation procedure. PCSJL plays a role in the implementation of the\ud Rule Language RL; the normalisation is to be used for query optimisation

Topics: Wijsbegeerte, relational data base, relational algebra, query optimisation, normalisation
Year: 1989
OAI identifier: oai:dspace.library.uu.nl:1874/26422
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