MDBtools to import to mysql or any database

mdb-tables -1 .mdb | xargs -n1 mdb-export -H -I .mdb >export.sql

mdb-tables - will list the tables in database (-1 will make sure they are one per line)

xargs with -n1 will force xargs to use one argument at a time, which is the only way mdb-export accepts

mdb-export -H will suppress Headers,
                    -I   to export as Insert rather than csv
output redirection will create a single file for you.

It will be easy to import to your mysql or oracle from mdb-export from mdb-tools.