package Bio::DB::UCSC::DB;
use strict;

use DBIx::SQLEngine;
our @ISA = qw/DBIx::SQLEngine/;

sub new {
    my $proto = shift;
    my $class = $proto;
    my $self  = $class->SUPER::new(@_);

    bless($self, $class);

    return($self);
}

1;

##</code><code>##

#!/usr/bin/perl
use strict;

use Bio::DB::UCSC::DB;
use DBIx::SQLEngine;

my $db = Bio::DB::UCSC::DB->new('dbi:mysql:database=hg18','uname','passwd');

my $sqldb = DBIx::SQLEngine->new('dbi:mysql:database=hg18','uname','passwd');

my $refGenes1 = $sqldb->fetch_select(
  tables => {'refGene.name' => 'refLink.mrnaAcc'},
  where => ['refGene.name like ?','NM_0002%']);

my $refGenes = $db->fetch_select(
  tables => {'refGene.name' => 'refLink.mrnaAcc'},
  where => ['refGene.name like ?','NM_0002%']);

##</code><code>##

  DB<3> x $sqldb
0  DBIx::SQLEngine::Driver::Mysql::V3_0=HASH(0x1a7c478)
   'dbh' => DBI::db=HASH(0x1a28f78)
        empty hash
   'package' => 'DBIx::SQLEngine::Driver'
   'reconnector' => CODE(0x1a7c4a8)
      -> &DBIx::SQLEngine::Driver::__ANON__[/Library/Perl/5.8.1/DBIx/SQLEngine/Driver.pm:252] in /Library/Perl/5.8.1/DBIx/SQLEngine/Driver.pm:252-252
  DB<4> x $db
0  Bio::DB::UCSC::DB=HASH(0x1a28f54)
   'dbh' => DBI::db=HASH(0x15c1fb8)
        empty hash
   'package' => 'DBIx::SQLEngine::Driver'
   'reconnector' => CODE(0x1a29938)
      -> &DBIx::SQLEngine::Driver::__ANON__[/Library/Perl/5.8.1/DBIx/SQLEngine/Driver.pm:252] in /Library/Perl/5.8.1/DBIx/SQLEngine/Driver.pm:252-252

##</code><code>##

main::(test.pl:16):     my $refGenes = $db->fetch_select(tables => {'refGene.name' => 'refLink.mrnaAcc'},
main::(test.pl:17):                                      where => ['refGene.name like ?','NM_0002%']);
  DB<1> 
Can't locate object method "fetch_select" via package "Bio::DB::UCSC::DB" at test.pl line 16.
 at test.pl line 16
Debugged program terminated.  Use q to quit or R to restart,