摘要: CREATE TABLE [dbo].[test1]( [program_id] [int] NULL, [person_id] [int] NULL) ON [PRIMARY]/*查询每组分组中第一条记录*/select * from test1 as awhere a.person_... 阅读全文
posted @ 2015-09-19 21:16 苦逼IT男 阅读(669) 评论(0) 推荐(0) 编辑