SQL 过程 返回NULL 不解
createPROCEDURE PK_FDD1(@BBRQ datetime) 
AS  
begin  

select cast(@BBRQ as datetime)
print @@error
return 1

end

调用 

declare @DCREP INT
exec PK_FDDRXSZL01 '2012-01-23'
select @DCREP

显示 2012-01-23 00:00:00.000

null

为什么不显示1


------解决方案--------------------

SQL code

--try
declare @DCREP INT
exec @DCREP =PK_FDDRXSZL01 '2012-01-23'
select @DCREP