Re: Class ADODB - Method GenID() in MySQL

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On 7/19/06, Renne Rocha <rennerocha@xxxxxxxxx> wrote:
  Hello,

  I am using the ADODB class to connect to a MySQL server. I am trying
to generate an ID with the method GenID(), but when I tried this:

  $id = $db->GenID('table');

  The value of $id is equal to zero. I know that MySQL doesn't use
sequences like PostgreSQL does (I've used this code in a PostgreSQL
project), but in the documentation of ADODB I saw that it is possible
to use it. Is there any trick about how to make it work?

You'll need to insert a value into the table first, then you can do:

$query = "UPDATE tablename SET id=LAST_INSERT_ID(id+1)";
$result = mysql_query($query);
$id = mysql_insert_id();

This is in the mysql docs somewhere...

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