In order to solve query performance degradation problems of the enterprise management system designed by "big focus" approach, and propose a sound query performance optimization model.

Research on the Query Optimization Based on Hibernate Caching Mechanism;

In this paper, a Web_based database accessing model with hierarchy structure was introduced and a method of fuzzy optimization query was given.

In this paper, a Web-based database accessing model with hierarchy structure is introduced and a method of fuzzy optimization query is given to meet the needs of ordinary customers inquiring, and to improve the situation of low inquiring rate on web.

An XML algebra and query optimization based on algebra;

Value-based query optimization algorithm;

Methods of query optimization based on MS SQL Server;

The Inquiry Optimization in The Distributed Data Base System;

A discussion of inquiry optimization in database;

This paper describes the usual steps and the realizing means to the inquiry optimization in RDBMS.

This article mainly discusses the function and the realization method of query optimize technology in RDB(relation database).

Base on the traditional query optimize technologies analyse , Object-Oriented Method (OO) is recommended to set up aOO model by 7 abstract class which is from the analyse of the SELECT syntax structure.