text: SELECT *
  FROM `country`;
  
  SELECT *
  FROM `country`
  WHERE `population` > 20000000;
  
  SELECT *
  FROM `country`
  WHERE `population` > 20000000
  ORDER BY `population` DESC;
  
  SELECT *
  FROM `country`
  WHERE `population` > 20000000
  ORDER BY `population` DESC
  LIMIT 0, 10;
  
  INSERT
  INTO `region`
  (`name`, `slug`)
  VALUES
  ('Eastern Europe', 'easter-europe');
  
  INSERT
  INTO `region`
  (`name`, `slug`)
  VALUES
  ('North America', 'north-america'),
  ('Central America', 'central-america'),
  ('South America', 'south-america');
  
  UPDATE `city`
  SET `name` = 'Prague'
  WHERE `id` = 3339;
  
  UPDATE `city`
  SET `population` = 1294513
  WHERE `id` = 3339;
  
  UPDATE `country`
  SET `HeadOfState` = 'Donald J. Trump'
  WHERE `GovernmentForm` = 'US Territory';