http://de3.php.net/manual/en/function.mysql-query.php
sagt:
resource mysql_query ( string query [, resource link_identifier] )
mit
link_identifier
The
MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect() is assumed. If no such link is found, it will try to create one as if mysql_connect() was called with no arguments. If by chance no connection is found or established, an E_WARNING level warning is generated.
Wenn ich Deine Antwort richtig interpretiere, dann muss ich trotzdem vorher mysql_select_db angeben. Danke!