摘要:
1、 SELECT T1,T2,T3 FROM TABLE Group by t1,t2,t3 having count(*) >1 查找重复记录 2、 DELETE FROM TABLE WHERE ID NOT IN (SELECT MAX(ID) FROM TABLE GROUP BY T1,T2,T3) 按条件删除重复记录 阅读全文
摘要:
1、fatal error C1010: unexpected end of file while looking for precompiled header directive。 寻找预编译头文件路径时遇到了不该遇到的文件尾。(一般是没有#include "stdafx.h") 2、fatal error C1083: Cannot open include file: 'R…….h': No... 阅读全文