OPENROWSET 与带参数的存储过程,该如何解决

OPENROWSET 与带参数的存储过程
select   *   from     OPENROWSET( 'SQLOLEDB ', 'SERVER=SZZYCW01;uid=sa;pwd=123;Database=accountcompare ',
'SET   FMTONLY   OFF;SET   NOCOUNT   ON   exec   testGetDataFromSupply '   +  
  CONVERT(Varchar(10),@frmDatetime,20)   +   ', '   +
  CONVERT(Varchar(10),@toDatetime,20) ')   as     s

[email protected]   @toDatetime   是存储过程的两个日期参数   请高手指教!  
报告提示:   +   号   附近有错误

------解决方案--------------------
改一下时间转换类型:
declare @frmDatetime smalldatetime,@toDatetime smalldatetime,@sql varchar(2000)
set @frmDatetime = '2007-02-03 '
set @toDatetime = '2007-06-03 '
set @sql= 'select * from
OPENROWSET( ' 'SQLOLEDB ' ', ' 'SERVER=SZZYCW01;uid=sa;pwd=123;Database=accountcompare ' ',
' 'SET FMTONLY OFF;SET NOCOUNT ON exec test ' ' ' ' '+CONVERT(varchar(10),@frmDatetime,120)+ ' ' ' ' ', ' ' ' ' '+CONVERT(varchar(10),@toDatetime,120)+ ' ' ' ' ' ' ') as a '
--print @sql
exec (@sql)