I have a chat script I wrote years ago using DB_File, but as the database gets larger it's becoming much less stable. I've tried to create a dbhack.pl to recreate a mysql version of it. It appears to store all records but not in the correct order.

The script below prints at the bottom and this ALWAYS shows the real order of posts, but somehow it becomes distorted in my mysql database. After 4 attempts, I've noticed the mysql setup always appears in the same wrong order, so it's not randomly throwing things in there. Anyone know what might be the problem? 

#!/usr/bin/perl -w

use strict;
use warnings;
use POSIX;
use CGI qw/:standard/;
use CGI::Carp qw(fatalsToBrowser);

use DB_File;
use DBI;



my $add;
my %chat;
my $chat = "chat.db";

tie %chat, "DB_File", "$chat", O_CREAT|O_RDWR, 0644, $DB_BTREE
    or die "Cannot open file 'chat': $!\n";

my $dbase = "*";
my $mysql_user = "*";
my $mysql_pass = "*";

print header, start_html();

###
# connect to database
###
my $dbh = DBI->connect("DBI:mysql:$dbase", $mysql_user, $mysql_pass) o
+r
print DBI->errstr;
                                   

foreach my $key (reverse sort keys %chat) {

my ( $name, $message, $userip) = split /~~/, $chat{$key};

my $data = qq(INSERT INTO chat (name, message, mood, ip, posttime) VAL
+UES(?,?,?,?,?));
my $sth = $dbh->prepare($data);
$sth->execute($name, $message, "happy", $userip, "0:0:0") or die $dbh-
+>errstr;

print qq($name $message $userip<br><br>);
}

[download]

In reply to database not in correct order by Anonymous Monk

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.