USE petclinic;

CREATE TABLE vets (
  id INT(4) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  first_name VARCHAR(30),
  last_name VARCHAR(30),
  INDEX(last_name)
) engine=InnoDB;

CREATE TABLE specialties (
  id INT(4) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  name VARCHAR(80),
  INDEX(name)
) engine=InnoDB;

CREATE TABLE vet_specialties (
  vet_id INT(4) UNSIGNED NOT NULL,
  specialty_id INT(4) UNSIGNED NOT NULL
) engine=InnoDB;
ALTER TABLE vet_specialties ADD CONSTRAINT fk_vet_specialties_vets FOREIGN KEY (vet_id) REFERENCES vets(id);
ALTER TABLE vet_specialties ADD CONSTRAINT fk_vet_specialties_specialties FOREIGN KEY (specialty_id) REFERENCES specialties(id);

CREATE TABLE types (
  id INT(4) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  name VARCHAR(80),
  INDEX(name)
) engine=InnoDB;

CREATE TABLE owners (
  id INT(4) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  first_name VARCHAR(30),
  last_name VARCHAR(30),
  address VARCHAR(255),
  city VARCHAR(80),
  telephone VARCHAR(20),
  INDEX(last_name)
) engine=InnoDB;

CREATE TABLE pets (
  id INT(4) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  name VARCHAR(30),
  birth_date DATE,
  type_id INT(4) UNSIGNED NOT NULL,
  owner_id INT(4) UNSIGNED NOT NULL,
  INDEX(name)
) engine=InnoDB;
ALTER TABLE pets ADD CONSTRAINT fk_pets_owners FOREIGN KEY (owner_id) REFERENCES owners(id);
ALTER TABLE pets ADD CONSTRAINT fk_pets_types FOREIGN KEY (type_id) REFERENCES types(id);
CREATE INDEX pets_name ON pets(name);

CREATE TABLE visits (
  id INT(4) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  pet_id INT(4) UNSIGNED NOT NULL,
  visit_date DATE,
  description VARCHAR(255),
  INDEX(pet_id)
) engine=InnoDB;
ALTER TABLE visits ADD CONSTRAINT fk_visits_pets FOREIGN KEY (pet_id) REFERENCES pets(id);