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随笔分类 -  DB Learning

SQL SERVER学习笔记一(摘录)

2014-06-08 10:41 by Johnnie Zhang, 127 阅读, 收藏,
摘要： 逻辑查询处理步骤(8)SELECT (9)DISTINCT (11) (1)FROM (3) JOIN (2) ON (4)WHERE (5)GROUP BY (6)WITH {CUBE | ROLLUP} (7)HAVING (10)ORDER BY 每个步骤产生一个虚拟表，... 阅读全文