菜鸟的asp问题，请大家帮忙

源码如下：
<table border="1" cellpadding="3" cellspacing="0" style="border-collapse: collapse" width="98%" id="AutoNumber3" height="52">
<tr>
        <td align=left  width="100%" ><B>单位部门</B></td>

</tr>
    <%set rstopdep=server.createobject("adodb.recordset")
    sqltopdep="select top 5 * from "& db_EC_Dep_Table &" where depnumber>=0 order by depnumber desc"
    rstopdep.open sqltopdep,Conn,1,1
    if not rstopdep.EOF then
    while not rstopdep.EOF
    %>
    <tr>
        <td align="left" width="100%"><a class=class target="_blank" href="dep.asp?id=<%=rstopdep("id")%>"><%=rstopdep("E_DepName")%>-<%=rstopdep("E_DepType")%></a></td>
    
    </tr>
    <%rstopdep.MoveNext
    wend
    end if
    rstopdep.close
    set rstopdep=nothing
    %>
    <tr>
        <td align=right  width="75%" colspan="2"><a class=class href="E_Alldep.asp">更多</a></td>
    </tr>
</table>


问题是sqltopdep="select top 5 * from "& db_EC_Dep_Table &" where depnumber>=0 order by depnumber desc"中的5为什么不起作用？谢谢