It appears to me that you are executing parent code in both the parent and the child.

I stripped your code down considerably and placed some print statements in there... Also added code so that it would work without the dbi stuff.

my @array = qw(1 2 3);
my $switch_ref = \@array;
for (my $count = 0; $count < @$switch_ref; ++$count) {
    my $switch = $switch_ref->[$count];
    my $pid;
    if ($pid = fork) {
        push @pids, $pid;
    } elsif (defined $pid) {
       print "Child: $pid\n";
    } else {
        die "Fork failed: $!\n"; 
    }

}
foreach my $pid (@pids){
    waitpid($pid,0);
}
print "parent: exiting.\n";
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