I am trying to sort timestamp. Timestamp = trunc of sysdate from an oracle DB. 
    while ( ($timestamp, $report_type, $data_name, $data_value) = $ora
+_sth->fetchrow_array)
{
        $key=$timestamp . "," . $report_type;
        if ($data_name eq "minutes") {$data_value = $data_value * 1440
+};
        if ($data_name eq "minutes") {$data_value = sprintf("%9.2f",$d
+ata_value)};
        $timestamps{$timestamp}=1;
        push @reporttypes, $report_type;
        $cellvalue{$key} = $data_value;
        }
  foreach $headingkey (@headings)
        {
        $row = $row . $query->th($headingkey);
        }
        print $query->Tr($row);

        foreach $timestamp (sort keys %timestamps)
        {
                $row = $query->td($timestamp);
                foreach $headingkey (@headings)
                {
                if ($headingkey eq "Timestamp") {next;}
                $key=$timestamp . "," . $headingkey;
                $row = $row . $query->td($cellvalue{$key});
                }
                print $query->Tr($row);
}

[download]
tia,

In reply to Need help sorting timestamps by swarddb

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.