sql 错误?急呀

[liguochun]

DECLARE @SQL VARCHAR(1000)
DECLARE @m_id VARCHAR(20)
set @m_id='jsleen'
SET @SQL = 'select m_id,trade_check,mileage,IsNull((select top 1 e_price from trade_list where id="'+ CONVERT(VARCHAR(20),@m_id)+'" order by idx desc) ,0) as t_mileage,IsNull((select top 1 ip from usr_log where id="'+ CONVERT(VARCHAR(20),@m_id)+'" order by regdate desc),0) as login_ip from mem_mast A where A.m_id="'+ CONVERT(VARCHAR(20),@m_id)+'"'
EXEC (@SQL)
select @SQL


执行以后提示
列的名字 'jsleen' 错误

高人请帮忙,谢谢

[rouqu]

print出来

[wzy_love_sly]

DECLARE   @SQL   VARCHAR(1000)
DECLARE   @m_id   VARCHAR(20)
set   @m_id='jsleen'
SET   @SQL   =   
'select m_id,trade_check,mileage,IsNull((select   top   1   e_price   from   trade_list   where   id='''+
 CONVERT(VARCHAR(20),@m_id)+'''   order   by   idx   desc)   ,0)   as   t_mileage,IsNull((select   top   1   ip     
from   usr_log   where   id='''+   CONVERT(VARCHAR(20),@m_id)+'''   order   by   regdate   desc),0)     as   login_ip   from   mem_mast   A   where   A.m_id='''+   CONVERT(VARCHAR(20),@m_id)+''''
EXEC   (@SQL)
select   @SQL 

试

[liguochun]

没有高人吗?

[wzy_love_sly]

要多高的？

[liguochun]

谢谢

[wzy_love_sly]

对吗?

[liguochun]

wzy_love_sly 正确