Issue No.04 - April (1985 vol.11)
S. Ceri , Dipartimento di Elettronica, Politecnico di Milano
In this paper, we present a translator from a relevant subset of SQL into relational algebra. The translation is syntax-directed, with translation rules associated with grammar productions; each production corresponds to a particular type of SQL subquery.
SQL, Program translation, query equivalence, query languages, query optimization, relational algebra, relational database model
S. Ceri, G. Gottlob, "Translating SQL Into Relational Algebra: Optimization, Semantics, and Equivalence of SQL Queries", IEEE Transactions on Software Engineering, vol.11, no. 4, pp. 324-345, April 1985, doi:10.1109/TSE.1985.232223