Updates a database.
$session_id, $client_id, $primary_id, $params
Parameters (in $params):server_id (int(11))
type (varchar(16))
database_name (varchar(64))
database_user (varchar(64))
database_password (varchar(64))
database_charset (varchar(64))
remote_access (enum('n','y'))
remote_ips (text)
active (enum('n','y'))
Output:Returns the number of affected rows.