GAAA算法在数据库多连接查询优化中的研究应用  

Application and Research on Multi-join Query Optimization of Database Based on GAAA Algorithm

作　　者：王莹[1] 徐鑫[1] 

机构地区：[1]渤海大学信息科学与工程学院,辽宁锦州121000

出　　处：《云南师范大学学报（自然科学版）》2011年第1期54-58,共5页Journal of Yunnan Normal University:Natural Sciences Edition

摘　　要：数据库优化中多连接技术是目前研究的热点问题,对于一个复杂的查询,寻找一个优化策略是数据库系统开发成功的关键所在。将GAAA算法应用于数据库的多连接优化中,并进行仿真试验。试验结果表明,用GAAA算法解决数据库多连接优化问题,克服了两种算法各自的缺陷,通过寻找较好的算法连接点,取得了比较满意的效果。Nowadays,the multi-join technology is becoming a hot issue in the database optimization.For a complex query,the key factor to database system developed success is to find an optimization strategy.The GAAA algorithm is applied to a database of multi-join query optimization,and to do a simulation experiment.The results show that using the GAAA algorithm to solve the problem of multi-join query optimization,to overcome the algorithms＇deficiencies.By finding a better join point for the algorithms,obtained a relatively satisfied effectiveness.

关 键 词：GAAA算法 数据库 多连接查询优化 

分 类 号：TP311.132.2[自动化与计算机技术—计算机软件与理论]