文章分类 -  SQL Server

摘要:--当A列大于B列时选择A列否则选择B列,当B列大于C列时选择B列否则选择C列。select (case when a>b then a else b end ), (case when b>c then b esle c end) from table_name--求... 阅读全文
posted @ 2014-07-09 17:09 壬子木 阅读(245) 评论(0) 推荐(0)
摘要:USE ExpressDBCREATE TABLE #tablespaceinfo ( nameinfo VARCHAR(50) , rowsinfo BIGINT , reserved VARCHAR(20) , datainfo VARCHAR(20... 阅读全文
posted @ 2014-07-08 17:12 壬子木 阅读(219) 评论(0) 推荐(0)