基于杰出者选择遗传算法的多连接查询优化

Much Connection Inquiry Optimizing of Inheritance Algorithm on Distinguished Choosing

多连接操作是关系数据库中最重要的操作之一,它是连接两个或多个关系中信息的主要方法。为了提高数据库系统性能对多连接查询进行优化是必不可少的,因此,针对多连接查询优化提出一种基于杰出者选择遗传算法。

The operation of much connection is one of the most important operation of the relation database,it is the most important method of linking two or many concerns.To rase the function of database,it is very important to carry out an optimization on much connection inquiry, therefore,the article puts forward a inheritance algorithm on distinguished choosing to much connection inquiry optimizing.