在SQL Server 2008中执行视图时出现"超时已过期"错误

Question

我在SQL Server 2008中编写了一个查询.查询大约需要4分钟才能执行.
我需要这个查询作为View.所以,我用这个查询创建了一个视图,当我尝试执行视图创建脚本时,它显示以下错误:

超时已过期.
操作完成之前经过的超时时间或服务器没有响应.

查询是:

SELECT t.jrnno,
       (SELECT SUM(t1.amount)
          FROM dbo.T_sh AS t1
         WHERE (t1.b_or_s = '1') AND (t1.jrnno = t.jrnno)) AS buy,
       (SELECT SUM(t2.amount)
          FROM dbo.T_sh AS t2
         WHERE (t2.b_or_s = '2') AND (t2.jrnno = t.jrnno)) AS sale, 
       SUM(t.amount) AS Total, 
       SUM(t.h_crg) AS Howla, 
       SUM(t.l_crg) AS Laga, 
       SUM(t.taxamt) AS Tax, 
       SUM(t.commsn) AS Commission
  FROM dbo.T_sh AS t
 WHERE (t.tran_type = 'S')  
   AND (t.jrnno NOT IN (SELECT DISTINCT jrnno
                          FROM dbo.T_ledger))
GROUP BY t.jrnno

T_sh和T_ledger两个表具有100K左右行.可能的原因是什么,我该如何克服这个？

更新:

select 
   t.jrnno, 
   SUM(CASE WHEN t.b_or_s = 1 THEN t.amount ELSE NULL END) buy,
   SUM(CASE WHEN t.b_or_s = 2 THEN t.amount ELSE NULL END) sale,
   SUM(t.amount) AS Total, 
   SUM(t.h_crg) AS Howla, 
   SUM(t.l_crg) AS Laga, 
   SUM(t.taxamt) AS Tax, 
   SUM(t.commsn) AS Commission
FROM 
   dbo.t_sh t
WHERE  
   t.tran_type = 'S'
   AND NOT EXISTS(SELECT 1 FROM  dbo.T_ledger x where x.jrnno = t.jrnno)
group by 
   t.jrnno

它解决了我的问题.感谢大家的快速回复.