MySQL 5.6列级查询

Question

I'm trying the following SQL in MySQL 5.6:

select Test=1 from ALL_FILES_INFO; 

However I am getting an error.

Error Code: 1054. Unknown column 'Test' in 'field list'

it is some thing Like this

Select Name,
       Amount=(select Amount from EmployeeAmount where EmployeeName=Name)
 from Employee;

The same code is running properly In Microsoft SQL Server.

Answer 1

SQL Server has an alternate way of stating column aliases, this will as far as I can tell do the exact same thing and work on both MySQL and SQL Server;

SELECT 1 AS Test from ALL_FILES_INFO; 

SQLFiddle for SQL Server
SQLFiddle for MySQL

Answer 2

You'd be better off joining your tables than using your correlated subquery:

SELECT Employee.Name, EmployeeAmount.Amount
FROM   Employee
  JOIN EmployeeAmount ON EmployeeAmount.EmployeeName = Employee.Name