摘要:
sql中inner join on 的用途: (等值连接)select * from A inner join B on A.no=B.no;查询出所有A的号数跟B的号数相等的记录,相当于:select * from A,B where A.no=B.no;多表查询:select * from ((... 阅读全文
摘要:
---恢复内容开始--- 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Web; 5 using System.Web.UI; 6 using System.Web.UI... 阅读全文