摘要
优化关系数据库的查询性能一直是信息系统开发人员关注的重要课题。以ＳＹＢＡＳＥＳＱＬＳｅｒｖｅｒ为例，从程序设计方法论角度出发，分析了导致表连接的查询处理低效的原因，阐述了在应用中如何合理地设计查询语句，以获得较高的查询性能方法。
Optimizing the performance of querying in related database, which is one of the important aspect of information system development, draws more attention in recent years. Based on the example of SYBASE SQL Server products, this paper analyzes the reasons for the low performance in joined table queries and explains how to design query commands which can achieve high performance.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
1997年第6期116-120,共5页
Journal of the China Railway Society
