text: INSERT INTO tickets
    ( id_user, ticket_request )
  VALUES
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL),
    (NULL, NULL);
  