不能使用“选择 TOP @Count ...”

Question

我正在创建一个类似于下面的程序。当没有“TOP @Count”时它工作正常，或者当我放置一个具体的值“TOP 100”时它工作正常。

那么为什么我不能在那里传递价值？？？我怎么能绕着它走？？？

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE MyProcedure    
    @Count int = 100
AS
BEGIN

  SELECT TOP @Count 
         t1.id AS ID, 
         t1.name AS Name, 
         t2.type AS TYPE    
    FROM sampleTable1 as t1 with (noloack), 
         sampleTable2 as t2 with (noloack)          
   WHERE (t1.t2Id = t2.Id)     
ORDER BY t1.name asc

END
GO

Answer 1

假设 2005+，您需要使用括号：

  SELECT TOP (@Count) 
         t1.id AS ID, 
         t1.name AS Name, 
         t2.type AS TYPE
    FROM sampleTable1 as t1 with (noloack)
    JOIN sampleTable2 as t2 with (noloack) ON t2.id = t1.t2.id
ORDER BY t1.name

我的理解是在 v2005中添加了括号支持，以便不需要动态 SQL。