Hi,
You can just do an UPDATE:
UPDATE $table set total_clicked = total_clicked+1
Regards
rory oconnor wrote :
>
> I'm setting up some tracking stats for (opt-in) e-mail campaigns, and
> one of the things I'm tracking is click-thrus. I'm going to re-direct
> traffic thru a script that will just count the number of clicks, and
> store that number in a mysql table.
>
> It needs to be fast and efficient, and I'm somewhat of a mysql newbie,
> so I was wonderinf if there is any more efficient way to simply add a
> number to the existing number in that table with mysql and perl. My way
> seems like a lot of code to do a little task. Any help is appreciated!
>
> # set up the db connection and SQL
> $dbh =
>
>DBI->connect("DBI:mysql:database=$database;host=$host","$user","$mysqlpassword",{'RaiseError'=>1});
> $select_number = "select total_clicked from $table";
>
> # actually execute the checking query
> $sth = $dbh->prepare("$select_number");
> if (!$sth) { die "Error:" . $dbh->errstr . "\n"; }
> if (!$sth->execute) { die "Error:" . $sth->errstr . "\n"; }
>
> # loop thru the query and set the result variables
> while (my $ref = $sth->fetchrow_arrayref) {
> $total_clicked = $$ref[0];
> }
>
> # add 1 to total_clicked
> $total_clicked=$total_clicked+1;
>
> # update the number
> $update_number = "UPDATE $table set total_clicked = $total_clicked";
>
> # actually execute the update query
> $sth = $dbh->prepare("$update_number");
> if (!$sth) { die "Error:" . $dbh->errstr . "\n"; }
> if (!$sth->execute) { die "Error:" . $sth->errstr . "\n"; }
>
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--
Joseph Bueno
NetClub/Trader.com
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