Question

是否可以访问在公用表表达式的查询中定义的临时列？说我有

select * from myTable 

;with cte  as 
(
    select
        *, Salary * 4 as FourTimesSalary
    from 
        Employees
    where 
        Name = @name
        and ID >= 100 
)

有没有办法在查询cte时使用临时列FourTimesSalary？

select top 2 *  
from cte  
order by FourTimesSalary, Name

TIA。

Answer 1

是的，你可以这样做。例如：

with temp as
(
    select 1 as id, 2*4 as val
    UNION
    select 2 as id, 3*4 as val
)
SELECT * FROM temp ORDER BY VAL desc

您的示例看起来很好，当您尝试使用该功能时是否出现错误？

T-SQL：访问公用表表达式中的临时列

1 个答案: