SQL错误 - 列数多于列列表

Question

我正在尝试从以下查询中检索结果，但不断收到此错误消息：

  

Msg 8158，Level 16，State 1，Line 1
  'a'的列数多于列列表中指定的列数。

我的查询：

select
    * 
from 
    (select 
         customer_key as customer_id, updated_by as [Help Desk] 
     from 
         permission) a (nolock)
where 
    [Help Desk] is not null

Answer 1

select 
    * 
from 
    (select 
         customer_key as customer_id, updated_by as [Help Desk] 
     from 
         permission with (nolock)) as a