text: ALTER TABLE improvements DROP FOREIGN KEY fk_improvement_game;
  ALTER TABLE units DROP FOREIGN KEY fk_unit_player;
  ALTER TABLE players DROP FOREIGN KEY fk_player_game;
  ALTER TABLE players DROP FOREIGN KEY fk_player_user;
  ALTER TABLE terrain DROP FOREIGN KEY fk_terrain_game;
  ALTER TABLE resources DROP FOREIGN KEY fk_resource_game;
  
  DROP TABLE IF EXISTS games;
  DROP TABLE IF EXISTS improvements;
  DROP TABLE IF EXISTS units;
  DROP TABLE IF EXISTS players;
  DROP TABLE IF EXISTS terrain;
  DROP TABLE IF EXISTS resources;
  DROP TABLE IF EXISTS games;
  DROP TABLE IF EXISTS terrain;
  DROP TABLE IF EXISTS players;
  DROP TABLE IF EXISTS units;
  DROP TABLE IF EXISTS improvements;
  