随笔 - 3 文章 - 0 评论 - 4 trackbacks - 0

SQL解析执行顺序

SQL在被数据库接收到,大多数数据库将按下列顺序解析执行:

form(join)
where
group by
having
select
order by

posted on 2008-04-01 14:26 Rivers Zhao 阅读(439) 评论(0) 编辑收藏