The performance of relational and object-relational SQL queries when using Oracle
Desempeño de consultas SQL relacionales y objeto-relacionales en Oracle
DOI:
https://doi.org/10.15446/ing.investig.v25n3.14658Keywords:
relational and object-relational databases, tuning, SQL, Oracle (en)bases de datos relacionales y objeto-relacionales, optimización, SQL, Oracle (es)
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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 behavior of relational and object-relational models is also shown.
En este artículo se muestra por medio de consultas específicas el comportamiento del modelo relacional y objeto-relacional, y se presenta así un estudio en el que se mide y a la vez se compara la eficiencia (tiempo, uso de recursos del sistema) de operaciones que involucran clausulas GROUP BY, subconsultas (con las cláusulas IN y EXISTS), y reuniones (joins).
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Copyright (c) 2005 Francisco Javier Moreno Arboleda, Guillermo Ospina Romero, Rafael Larios Restrepo

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