on ma, 10 feb 2003 19:04:01 GMT, Mario Kulka wrote:

> $sth = $dbh->prepare ("SELECT LAST_INSERT_ID() FROM $table");
> $sth -> execute();
> $ad_id = $sth->fetchrow_array();
> $sth->finish();
> ...
> 
> The above works fine and gives me the last id, but what worries me is
> the possibility of someone submitting new record between the lines
> "Insert record" and the rest. Is that a valid concern?

You don't have to worry about this, because the result of the 
LAST_INSERT_ID() function is maintained by the server on a per-connection 
basis.

You do have to worry about your 'SELECT LAST_INSERT_ID() FROM atable' 
syntax though, which does not return what you expect. In fact, it returns 
as many rows as there are in atable, each containing the value of the 
auto_increment field generated in the last INSERT statement, regardless 
which table the INSERT statement whas issued for.
 
-- 
felix

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