02 2009 档案

摘要:查找b表中不在a表中的数据select*from#bexceptselect*from#a查找a,b两个表的交集select*from#bintersectselect*from#a 阅读全文
posted @ 2009-02-24 16:32 PENGHAO-X 阅读(331) 评论(0) 推荐(0) 编辑
摘要:用法:<!--[if lt IE 8]>code here<![endif]-->解释语句如下: gt = selects greater than(高于) lt = selects less than(低于) gte = selects greater than or equal to(>=) lte = selects less than or equal to(... 阅读全文
posted @ 2009-02-16 15:05 PENGHAO-X 阅读(704) 评论(0) 推荐(0) 编辑

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