10 2015 档案

linq-to-sql实现left join，group by，count
摘要：linq-to-sql实现left join，group by，count用linq-to-sql实现下面的sql语句：SELECT p.ParentId, COUNT(c.ChildId)FROM ParentTable p LEFT OUTER JOIN ChildTable c ON p.P... 阅读全文
posted @ 2015-10-30 13:45 CreativeSpirit 阅读(1733) 评论(1) 推荐(0)