摘要: sql:SELECT *FROM users;SELECT *FROM posts;SELECT *FROM Posts pLEFT JOIN Users u ON u.Id= p.OwnerIdORDER BY p.Id结果集:代码:string sql =@"select * from Post... 阅读全文
posted @ 2015-08-29 14:38 佯林 阅读(1047) 评论(4) 推荐(2) 编辑