sql异常-The used SELECT statements have a different number of columns
2017-03-23 13:57
411 查看
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。
内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 
相关文章推荐
- sql语句遇到错误： The used SELECT statements have a different number of columns :
- ERROR 1222 (21000): The used SELECT statements have a different number of columns
- UNION关键字报错：ERROR 1222 (21000): The used SELECT statements have a different number of columns
- ERROR 1222 (21000): The used SELECT statements have a different number of columns
- mysql The used SELECT statements have a different number of columns
- ERROR 1222 (21000): The used SELECT statements have a different number of columns
- The used SELECT statements have a different number of columns 错误解决
- The used SELECT statements have a different number of columns
- [Err] 1222 - The used SELECT statements have a different number of columns
- Nhibernate: Foreign key must have same number of columns as the referenced primary key
- 异常：java.sql.SQLException: The total number of locks exceeds the lock table size
- Reduce the Number of SQL Statements
- Reduce the Number of SQL Statements
- Is there a limit to the number of columns in an HBase row?
- 【OpenCV学习笔记】【异常处理】一（The Matrix is not continuous, thus its number of rows can not be changed）
- sql异常之Parameter index out of range (1 > number of parameters, which is 0)
- "Your computer could not be joined to the domain. You have exceeded the maximum number of computer accounts you are allowed to create in this domain. Contact your system administrator to have this limit reset or increased."
- Kettle解析JSON错误,We MUST have the same number of values for all paths,We can not find and data with path [$.
- This is probably a good time to review the order in which SELECT statement clauses are to be specified. Table 10.2 lists all the clauses we have learned thus far, in the order they must be used.
- 91.View the Exhibit and examine the structure of the PROMOTIONS table. Which two SQL statements woul