帮小弟我看看这个存储过程错哪了？ 对存储过程一窍不通

ALTER proc [dbo].[proc_GetPrjWhere]    @Dptid int,    @Userid int,    @PrjCode varchar(20),    @BCreatdate datetime,    @ECreatdate datetimeasdeclare @where varchar(200)set @where = '1=1'exec('select * from Info_prjvalues where [email protected]+'')    

declare @where varchar(200)set @where = '1=1'DECLARE @sql VARCHAR(500)SET @sql='select * from Info_prjvalues where [email protected]+''SELECT @sql/*select * from Info_prjvalues where =1=1*/