期刊文献+

ORACLE中SQL查询优化技术 被引量:1

Research of SQL's Performance Tuning in Oracle
下载PDF
导出
摘要 数据库性能问题一直是决策者及技术人员共同关注的焦点,影响数据库性能的一个重要因素就是SQL查询语句的低效率。论文首先分析了导致SQL查询语句性能低下的四个常见原因以及SQL调优的一般步骤,然后分别针对如何降低I/O操作、在查询语句中如何避免对查询结果的高成本操作以及在多表连接时如何提高查询效率进行了分析。 The performance of DBMS is the common focus of decision-makers and technologists.The inefficient SQL is an important factor.This paper analyzes four factors which affect the performance of SQL and the common process in SQL tuning.Then it emphasizes how to reduce I/O,avoid high-cost operations on fields and how to enhance proficiency in multi-table joins.
作者 刘光霆
出处 《微型电脑应用》 2008年第5期59-61,55,共4页 Microcomputer Applications
关键词 ORACLE SQL 优化 连接 ORACLE SQL PERFORMANCE-TUNING JOIN
  • 相关文献

参考文献7

  • 1Thomas Kyte.Effective Oracle by Design:Design and Build High-performance Oracle Application [M].The McGral-Hill Companies,Inc,2003,
  • 2Kevin Loney, George Koch ,Oracle 9i:The Complete Refefence [M] . The McGral-Hill Corp anies,Inc,2002.
  • 3Oracle9i SQL Reference release 2(9.2).[DB/OL] 2002.10. http: / /www.oracle.com/ technology/.
  • 4Oracle9i Data Warehousing Guide release 2(9.2)[DB/OL]. 2002.03, http://www.oracle.com/technology/.
  • 5Alexey Danchenkov,Donald Burleson,Oracle Tuning:The Definitive Reference. [DB/OL] Rampant Techpress,2006.
  • 6Oracle9i Database Concepts release 2(9.2).[DB/OL]2002. 08. http://www.oracle.com/technology/.
  • 7Oracle9i supplied plsql packages and types reference release 2(9.2) [DB/OL]. 2002,12. http://www.oracle.com/ technology/.

同被引文献4

引证文献1

二级引证文献8

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部