Try Link tables
With Link tables you can query multiple mdb using join as if
tables are in same mdb.
From current mdb, select menu bar, Insert,Table, Link table,
choose tables from 'c:\myfolder\mydb.mdb'
lets say you have table mytable on 'c:\myfolder\mydb.mdb'
Your query becomes, 'select * from mytable'
Hope it helps.