How To Transfer Records From One Table Of A Database To Another Table In Another Data

I have aproblem to transfer a data from table x to table y based on id. Its mean when 2 table have same id all data table x must move to table y. I don't know which command need to use is it insert into or update?

<%
Dim conn
Dim rs
Dim MYSQL,MYSQL2

Set conn = Server.CreateObject("ADODB.Connection")
Set rs = Server.CreateObject("ADODB.Recordset")
Set cmd = Server.CreateObject("ADODB.Recordset")
conn.ConnectionString = "DSN=prmm;UID=administrator;pwd=sa"
conn.Open

startdate=request("tarikh1")
enddate=request("tarikh2")

MYSQL = "SELECT * FROM table_x where paymentdate between '" & tarikh1 & "' and '" & tarikh2 & "'"
rs.open MYSQL,conn ....