DECLARE @temp TABLE    (      Id INT,      Title nvarchar(50),      Value    nvarchar(1000),      Remark nvarchar(1000),      Pass nvarchar(50)    )     --获取自增最大值   declare @flag int   select @flag=Isnull(MAX(Id),0) from  AkWorkOrderPrintDate      --变量   while @flag>0   begin      --是否存在这条记录      declare @count int      select @count=COUNT(*) from AkWorkOrderPrintDate where Id=@flag      if @count=1      begin        --拷贝这行的数据        insert into @temp         select Id,Title,Value,Remark,‘值错误‘ from AkWorkOrderPrintDate where Id=@flag                --测试日期设置        declare @val nvarchar(1000)        select @val=Value from @temp where Id=@flag        set @val=‘select @a=‘+@val                --执行        begin try          declare @pass nvarchar(1000)          exec sp_executesql @val,N‘@a nvarchar(1000) output‘,@pass output             update @temp set Pass=@pass where Id=@flag        end try        begin catch        end catch      end      set @flag=@flag-1   end      select * from @temp