QUERY PROCESSING STRATEGIES IN TIIE PASCALIR RELATIONAL DATABASE MANAGEMIfNT SYSTEM
نویسنده
چکیده
In the database programming language PASCAL/R, the programming language PASCAL and concepts based on the relational data model are integrated. The paper investigates transformation strategies used in the PASCAL/R system to evaluate queries with existential and universal quantifiers. Intermediate data structures are described using a high-level language tool called a reference to a selected variable. The predicate calculus approach used in PASCAL/R offers new insight into recently proposed query optimization techniques and allows some of them to be extended. Center for Digital Economy Research Stem School of Business IVorking Paper IS-82-28
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تاریخ انتشار 2005