use strict;
use DBI;
my $dbh = DBI->connect("dbi:ODBC:driver=Microsoft Access Driver (*.mdb, *.accdb);dbq=a.mdb")
         or         die "Can't connect to Database: $DBI::errstr";


##</code><code>##

DBI connect('driver=Microsoft Access Driver (*.mdb, *.accdb);dbq=a.mdb','',...) failed: [unixODBC][Driver Manager]Data source name not found, and no default driver specified (SQL-IM002) at ./test.pl line 4
Can't connect to Database: [unixODBC][Driver Manager]Data source name not found, and no default driver specified (SQL-IM002) at ./test.pl line 4.