A bit more of an expansion on my comment above... 
# untested! just off top of head

my $db   = 'DBI:mysql:database=db;host=host';
my $user = '...';
my $pass = '...';

my $result = db_query('select * from table');

my $dbh;
sub db_query {
  my $sql = $_[0];
  $dbh = DBI->connect_cached($db, $user, $pass);
  my $sth = $dbh->prepare($sql);
  $sth->execute();
  my $result_hashref = {};
  while (my $ref = $sth->fetchrow_hashref()) {
    $result_hashref->{ $ref->{'id'} } = $ref;
  }
  $sth->finish();

  return $result_hashref;
}

sub DESTROY {
  if (defined $dbh) {
    $dbh->disconnect();
  }
}

[download]
Is this the sort of thing you're looking for?

.02

cLive ;-)

In reply to Re: Copy an object by cLive ;-)
in thread Copy an object by Jaap

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.