SQL语法问题

Question

我不能为我的生活弄清楚什么不对的SQL语句

select top(1) 
    OrderNumber 
from (select top(5) 
     OrderNumber 
     from SomeTable 
     where TreePath='tests' 
     order by OrderNumber asc) 

什么想法？

问候， 拜伦科布。

Answer 1

您需要别名派生表

select top 1 
    myDerivedTable.OrderNumber 
from (select top 5 
     OrderNumber 
     from TABLE 
     where TreePath='tests' 
     order by OrderNumber asc) myDerivedTable 
order by myDerivedTable.OrderNumber