The most important reason is that you did not include "ADOVBS.INC" or equavalent META: -
<!--METADATA
TYPE="TypeLib"
NAME="Microsoft ActiveX Data Objects 2.6 Library"
UUID="{00000206-0000-0010-8000-00AA006D2EA4}"
VERSION="2.6"
-->
Therefore, constants adxxxxdo not exist. However, your main mistake does not include Option Explicitat the top of your script. This will save you from unnecessary loads of time, hunting for stupid mistakes and typos.
BTW , ATTUserDataID "0; DELETE ATTJournals;"?
SQL , . "ASP SQL Injection", .