摘要：
Suppose you have a tblRoom and tblUserInfo. Now, you need to select all the rooms regardless of whether the room has user information or not. This cal 阅读全文
posted @ 2015-04-22 16:40
无恨星晨
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摘要：
linq to sql 实现左（右）连接，那个方法是对的var query2 = from tb0 in db.table_0 join tb1 in db.table_1 on table_0.关联键 equals table_1.关联键 into all from tb2 in all.Defa 阅读全文
posted @ 2015-04-22 15:52
无恨星晨
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