是什么原因使Rs2.MoveNext不移动到下一条记录而是移动到别的一条记录

程序如下:
Set Rs2 = Server.CreateObject("ADODB.Recordset")
sq2 = "SELECT *  FROM  "&md&""
‘"&md&"为学生名单表
Rs2.open sq2,conn,1,1
‘以下是建学生考试成绩数据表session("cj")
  SQL = "CREATE TABLE ["+session("cj")+"] ("
  SQL = SQL & "[id]   identity not null ,"
  SQL = SQL & "[xh] char (8) NOT NULL,"
  SQL = SQL & "[xm] char (8) NOT NULL,"
for i=0 to ubound(ValueArray)-1
SQL = SQL & "["&ValueArray(i)&"] number ,"
next
SQL = SQL & "[zf] number ,"
  SQL = SQL & "[bjmc] number ,"
  SQL = SQL & "[njmc] number "
  SQL =SQL& ")"
Set RS = Conn.Execute(SQL)
kskms=ubound(ValueArray)+3
‘以下是初始化学生考试成绩数据表session("cj")，设所有考试成绩为-1
j=1
While (NOT Rs2.EOF)
ls="'"+cstr(j)+"',"+"'"+Rs2.Fields.Item("xh").value+"'," +"'"+Rs2.Fields.Item("xm").value+"',"
for i=1 to kskms
ls=ls+cstr(-1)+","
next
ls=left(ls,len(ls)-1)
strq="insert into "&session("cj")&" values("&ls&")"
conn.execute strq
‘问题就出在下面一句，本应该依次把学生名单表中的“学号（XH）和姓名（XM）”插入学生考试成绩数据表session("cj")，但是就是不知道什么原因，本程序没有依学生名单的次序，而是把学生名单的次序打乱了插入学生考试成绩数据表session("cj")，我请教的就是：此语句明明是移动到下一条记录，是什么原因会不跳到下一条记录而是移动到另外一条记录去？
Rs2.MoveNext
j=j+1
wend