tedd wrote:
Hi to the original poster:
Snip -- a lot of discussion
Use the following code at your own peril.
$dbQuery = "ALTER TABLE $dbtable ";
$dbQuery .= "DROP id, ";
$dbQuery .= "ADD id INT UNSIGNED NOT NULL AUTO_INCREMENT,";
$dbQuery .= "AUTO_INCREMENT = 1";
$result = mysql_query($dbQuery) or die("Could not renumber dB $dbQuery"
. mysql_error());
The reason for not wanting to care about the auto_increment id is that
it is something that the database uses and really should not be changed.
If you want to have a sequential record number, then add that field and
alter it as you will, but leave the internal workings of database alone.
However, if you wish not to understand how all that works, then use the
code above -- it will renumber your auto_increment id leaving no gaps.
At the risk of turning this into a truly marathon thread ...
I don't think altering the id is necessary at all. The solution the OP
seems to be looking for is to (as Graham has said) count off the rows as
they are being printed using a variable. Using a table for clarity:
<?php
$sql = 'SELECT id, title FROM foo';
$result = mysql_query($sql);
$count = 0;
while (++$count && ($row = $result->fethchRow()))
{
?>
<tr>
<td>
row #<?= $count ?>
</td>
<td>
<a href="foo.php?id=<?= $row['id'] ?>"><?= $row['title'] ?></a>
</td>
</tr>
<?php
}
It seems that all this is about is displaying a rowcount. The ids can be
anything at all and it'll still look spiffy.
brian
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