Resumo

MORENO, Francisco Javier; OSPINA ROMERO, Guillermo  e  LARIOS RESTREPO, Rafael. The performance of relational and object-relational SQL queries when using Oracle. Ing. Investig. [online]. 2005, vol.25, n.3, pp.4-12. ISSN 0120-5609.

This article presents a study in which the performance of several queries involving GROUP BY clause, sub-queries (using IN and EXISTS clauses) and joins are measured and compared by means of specific queries. The behaviour of relational and object-relational models is also shown.

Palavras-chave : relational and object-relational databases; tuning; SQL; Oracle.

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