摘要
介绍了编写SQL语句和提高数据库查询速度需要注重的问题.影响数据库系统性能的因素有很多,其中运用SQL语句的优劣对数据库系统的性能有直接的影响.优化的SQL语句能够提高数据库系统的性能,减少系统的响应时间,提高系统的响应速度.
The key problems need to be paid attention to writing SQL and improving speed of querying database are discussed here. There are many aspects affecting performance of database system, and using stand or fall SQL directly influences performance of database system. Optimized SQL can improve performance of database system and decrease response time and improve response speed of the system.
出处
《西南民族大学学报（自然科学版）》
CAS
2004年第1期73-75,共3页
Journal of Southwest Minzu University(Natural Science Edition)
关键词
数据库
查询
优化
SOL
SQL
database optimization
performance
