asp初学者求解惑 _ASP

asp菜鸟求各位高手解惑
asp页面：

<html>
    <head>
        <title>课表查询</title>
    </head>
    <body>
        <%
    Set MyComm = Server.CreateObject("ADODB.Command")
      with MyComm
      .ActiveConnection = connstr 'MyConStr是数据库连接字串
      .CommandText = "SelCou_teacher_TeaNo" '指定存储过程名
      .CommandType = 4 '表明这是一个存储过程
      .Prepared = true '要求将SQL命令先行编译
      .Parameters.append .CreateParameter("@TeaNo",200,1,4,"20000001")
      Set MyRst = .Execute
      end with
      Set MyComm = Nothing

            '从第一个记录集中取值
            UserName = MyRst(0)
            '从第二个记录集中取值
            if not MyRst is Nothing then
                Set MyRst = MyRst.NextRecordset()
                TeaName = MyRst(0)
                CouName = MyRst(1)
                nn=CStr(UserTel)
        mm=CStr(UserMail)
        response.write(nn)
        response.write(mm)
                end if
                Set MyRst = Nothing
%>
        </table>
    </body>
</html>
sql存储过程：
use ManageDB
go
create proc SelCou_teacher_TeaNo
@TeaNo nvarchar(8)
as
select Teacher.TeaName AS '老师名称' ,  Course.CouName AS '课程名称'
from Course,OpenClass,Teacher
where Course.CouNo=OpenClass.CouNo
AND OpenClass.TeaNo=@TeaNo
AND OpenClass.TeaNo=Teacher.TeaNo
return
go

求各位大神帮我看看哪里出错了，我是菜鸟。so...希望大家可以解释一下哈！！拜托了各位

ASP 存储

------解决方案--------------------
Parameters.append .CreateParameter("@TeaNo",203,1,8,"20000001") SP的参数是nvarchar(8)的
因为 SP SelCou_teacher_TeaNo中返回的只有一个记录集