Manipulation of expressions in a relational algebra


Stroet, J.W.M. and Engmann, R. (1979) Manipulation of expressions in a relational algebra. Information Systems, 4 (3). pp. 195-203. ISSN 0306-4379

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Abstract:This paper describes a syntax for expressions based on the relational algebra. A tree representation is generated when an expression is analyzed. Transformations on the tree representations of expressions are applied in order to obtain improvements with respect to the speed of evaluation in a data base environment.
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Copyright:© 1979 Elsevier Science
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