DROP TABLE IF EXISTS pet;
DROP TABLE IF EXISTS person;
DROP TABLE IF EXISTS person_pet;

CREATE TABLE person (
    id INTEGER PRIMARY KEY,
    first_name TEXT,
    last_name TEXT,
    age INTEGER
);

CREATE TABLE pet (
    id INTEGER PRIMARY KEY,
    name TEXT,
    breed TEXT,
    age INTEGER,
    dead INTEGER
);

CREATE TABLE person_pet (
    person_id INTEGER,
    pet_id INTEGER
);

INSERT INTO person (id, first_name, last_name, age)
    VALUES (0, "Zed", "Shaw", 37);

INSERT INTO pet (id, name, breed, age, dead)
    VALUES (0, "Fluffy", "Unicorn", 1000, 0);

INSERT INTO pet VALUES (1, "Gigantor", "Robot", 1, 1);

INSERT INTO person_pet (person_id, pet_id) VALUES (0, 0);
INSERT INTO person_pet VALUES (0, 1);

SELECT * FROM person;

SELECT name, age FROM pet;

SELECT name, age FROM pet WHERE dead = 0;

SELECT * FROM person WHERE first_name != "Zed";

SELECT pet.id, pet.name, pet.age, pet.dead
  FROM pet, person_pet, person
  WHERE
  pet.id = person_pet.pet_id AND
  person_pet.person_id = person.id AND
  person.first_name = "Zed";

SELECT name, age FROM pet WHERE dead = 1;

DELETE FROM pet WHERE dead = 1;

SELECT * FROM pet;

INSERT INTO pet VALUES (1, "Gigantor", "Robot", 1, 0);

SELECT * FROM pet;