text: DROP TABLE IF EXISTS user;
  DROP TABLE IF EXISTS address;
  
  CREATE TABLE user (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    username TEXT UNIQUE NOT NULL,
    password TEXT NOT NULL
  );
  
  CREATE TABLE address (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    FOREIGN KEY(user_id) REFERENCES user(id)
    address TEXT UNIQUE NOT NULL,
    username TEXT UNIQUE NOT NULL
  );
  