Are you looking for something like:

$sth->bind_columns( undef, \$orig_service_id, \$orig_stop, $depart_ori
+g);

while ($sth->fetch())
{
    $ids{$orig_service_id} =
    {
        stop_reference => $orig_stop,
        depart_time    => $depart_orig,
    }
}

[download]

If you use that system, then you can write something like:

$sth->bind_columns( undef, \$dest_service_id, \$dest_stop, $depart_des
+t);
while ($sth->fetch())
{
    if (exists ($ids{$dest_service_id})
    {
        print "ID $id exists in both origin and destination set\n";
        print "\t$ids{$dest_service_id}{stop_reference} => $dest_stop\
+n";
        print "\t$ids{$dest_service_id}{depart_time} => $depart_dest\n
+";
    }
}

[download]

Update: Typo fixed, thanks to johngg.

In reply to Re: Keeping associated data after entering into a hash by chromatic
in thread Keeping associated data after entering into a hash by Harch84

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.