两个或多个select查询进行union时，查询的列不对应。两个select进行union时，两个select的查询出的列必须相对应。
免责声明！
本站转载的文章为个人学习借鉴使用，本站对版权不负任何法律责任。如果侵犯了您的隐私权益，请联系本站邮箱yoyou2525@163.com删除。
猜您在找
sql语句遇到错误： The used SELECT statements have a different number of columns :
Laravel - Union + Paginate at the same time? and another problem----1222 The used SELECT statements have a different number of columns (SQL: (select count(*) as aggregate from
异常之【You have an error in your SQL syntax】
[Err] 1118 - Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. This includes storage overhead, check the manual. You have to change some columns to
在使用Navicat for MySQL 出现 异常"You have an error in your SQL syntax......"
Your branch and 'origin/master' have diverged, and have 1 and 1 different commits each, respectively
关于java.sql.SQLException: Can not issue data manipulation statements with executeQuery().
遇到Your branch and 'origin/xxxx' have diverged, and have 3 and 9 different commits each, respectively.问题的分析及解决方法
SQL Server（00）：INFORMATION_SCHEMA.columns 与sys.columns 与 syscolumns对比
passwd: Have exhausted maximum number of retries for service【转】