/*

Sakila for Oracle is a port of the Sakila example database available for MySQL, which was originally developed by Mike Hillyer of the MySQL AB documentation team. 
This project is designed to help database administrators to decide which database to use for development of new products
The user can run the same SQL against different kind of databases and compare the performance

License: BSD
Copyright DB Software Laboratory
http://www.etl-tools.com

*/


--
-- Table structure for table actor
--
--DROP TABLE actor;

CREATE TABLE actor (
  actor_id numeric NOT NULL ,
  first_name VARCHAR(45) NOT NULL,
  last_name VARCHAR(45) NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_actor PRIMARY KEY  (actor_id)
);

CREATE INDEX idx_actor_last_name ON actor(last_name);
 
  --DROP SEQUENCE actor_sequence;

CREATE SEQUENCE actor_sequence;

CREATE OR REPLACE TRIGGER actor_before_trigger 
BEFORE INSERT ON actor FOR EACH ROW 
BEGIN
  IF (:NEW.actor_id IS NULL) THEN
    SELECT actor_sequence.nextval INTO :NEW.actor_id
    FROM DUAL;
  END IF;
  :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER actor_before_update
BEFORE UPDATE ON actor FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/


--
-- Table structure for table country
--

CREATE TABLE country (
  country_id SMALLINT NOT NULL,
  country VARCHAR(50) NOT NULL,
  last_update DATE,
  CONSTRAINT pk_country PRIMARY KEY (country_id)
);

---DROP SEQUENCE country_sequence;

CREATE SEQUENCE country_sequence;


CREATE OR REPLACE TRIGGER country_before_trigger
BEFORE INSERT ON country FOR EACH ROW 
BEGIN
  IF (:NEW.country_id IS NULL) THEN
    SELECT country_sequence.nextval INTO :NEW.country_id
    FROM DUAL;
  END IF;
  :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER country_before_update
BEFORE UPDATE ON country FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/


--
-- Table structure for table city
--

CREATE TABLE city (
  city_id int NOT NULL,
  city VARCHAR(50) NOT NULL,
  country_id SMALLINT NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_city PRIMARY KEY (city_id),
  CONSTRAINT fk_city_country FOREIGN KEY (country_id) REFERENCES country (country_id)
);

CREATE INDEX idx_fk_country_id ON city(country_id);

--- DROP SEQUENCE city_sequence;

CREATE SEQUENCE city_sequence;

CREATE OR REPLACE TRIGGER city_before_trigger
BEFORE INSERT ON city FOR EACH ROW 
BEGIN
  IF (:NEW.city_id IS NULL) THEN
    SELECT city_sequence.nextval INTO :NEW.city_id 
    FROM DUAL;
  END IF;
 :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER city_before_update
BEFORE UPDATE ON city FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/


--
-- Table structure for table address
--

CREATE TABLE address (
  address_id int NOT NULL,
  address VARCHAR(50) NOT NULL,
  address2 VARCHAR(50) DEFAULT NULL,
  district VARCHAR(20) NOT NULL,
  city_id INT  NOT NULL,
  postal_code VARCHAR(10) DEFAULT NULL,
  phone VARCHAR(20) NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_address PRIMARY KEY (address_id)
);

CREATE INDEX idx_fk_city_id ON address(city_id);

ALTER TABLE address ADD CONSTRAINT fk_address_city FOREIGN KEY (city_id) REFERENCES city (city_id);

  --DROP SEQUENCE city_sequence;

CREATE SEQUENCE address_sequence;

CREATE OR REPLACE TRIGGER address_before_trigger
BEFORE INSERT ON address FOR EACH ROW 
BEGIN
  IF (:NEW.address_id IS NULL) THEN
    SELECT address_sequence.nextval INTO :NEW.address_id 
    FROM DUAL;
  END IF;
 :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER address_before_update
BEFORE UPDATE ON address FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/

--
-- Table structure for table language
--

CREATE TABLE language (
  language_id SMALLINT NOT NULL ,
  name CHAR(20) NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_language PRIMARY KEY (language_id)
);

---DROP SEQUENCE language_sequence;

CREATE SEQUENCE language_sequence;

CREATE OR REPLACE TRIGGER language_before_trigger
BEFORE INSERT ON language FOR EACH ROW 
BEGIN
  IF (:NEW.language_id IS NULL) THEN
    SELECT language_sequence.nextval INTO :NEW.language_id 
    FROM DUAL;
  END IF;
  :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER language_before_update
BEFORE UPDATE ON language FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/

--
-- Table structure for table category
--

CREATE TABLE category (
  category_id SMALLINT NOT NULL,
  name VARCHAR(25) NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_category PRIMARY KEY  (category_id)
);

---DROP SEQUENCE category_sequence;

CREATE SEQUENCE category_sequence;

CREATE OR REPLACE TRIGGER category_before_trigger
BEFORE INSERT ON category FOR EACH ROW 
BEGIN
  IF (:NEW.category_id IS NULL) THEN
    SELECT category_sequence.nextval INTO :NEW.category_id 
    FROM DUAL;
  END IF;
  :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER category_before_update
BEFORE UPDATE ON category FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/

--
-- Table structure for table customer
--

CREATE TABLE customer (
  customer_id INT NOT NULL,
  store_id INT NOT NULL,
  first_name VARCHAR(45) NOT NULL,
  last_name VARCHAR(45) NOT NULL,
  email VARCHAR(50) DEFAULT NULL,
  address_id INT NOT NULL,
  active CHAR(1) DEFAULT 'Y' NOT NULL,
  create_date DATE NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_customer PRIMARY KEY  (customer_id),
  CONSTRAINT fk_customer_address FOREIGN KEY (address_id) REFERENCES address(address_id)
);

CREATE INDEX idx_customer_fk_store_id ON customer(store_id);

CREATE INDEX idx_customer_fk_address_id ON customer(address_id);

CREATE INDEX idx_customer_last_name ON customer(last_name);

---DROP SEQUENCE customer_sequence;

CREATE SEQUENCE customer_sequence;

CREATE OR REPLACE TRIGGER customer_before_trigger
BEFORE INSERT ON customer FOR EACH ROW 
BEGIN
  IF (:NEW.customer_id IS NULL) THEN
    SELECT customer_sequence.nextval INTO :NEW.customer_id 
    FROM DUAL;
  END IF;
  :NEW.last_update:=current_date;
  :NEW.create_date:=current_date;
END;
/
CREATE OR REPLACE TRIGGER customer_before_update
BEFORE UPDATE ON customer FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/
--
-- Table structure for table film
--

CREATE TABLE film (
  film_id int NOT NULL,
  title VARCHAR(255) NOT NULL,
  description CLOB DEFAULT NULL,
  release_year VARCHAR(4) DEFAULT NULL,
  language_id SMALLINT NOT NULL,
  original_language_id SMALLINT DEFAULT NULL,
  rental_duration SMALLINT  DEFAULT 3 NOT NULL,
  rental_rate DECIMAL(4,2) DEFAULT 4.99 NOT NULL,
  length SMALLINT DEFAULT NULL,
  replacement_cost DECIMAL(5,2) DEFAULT 19.99 NOT NULL,
  rating VARCHAR(10) DEFAULT 'G',
  special_features VARCHAR(100) DEFAULT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_film PRIMARY KEY  (film_id),
  CONSTRAINT fk_film_language FOREIGN KEY (language_id) REFERENCES language (language_id) ,
  CONSTRAINT fk_film_language_original FOREIGN KEY (original_language_id) REFERENCES language (language_id)
);

ALTER TABLE film ADD CONSTRAINT CHECK_special_features CHECK(special_features is null or
                                                              special_features like '%Trailers%' or
                                                              special_features like '%Commentaries%' or
                                                              special_features like '%Deleted Scenes%' or
                                                              special_features like '%Behind the Scenes%');

ALTER TABLE film ADD CONSTRAINT CHECK_special_rating CHECK(rating in ('G','PG','PG-13','R','NC-17'));

CREATE INDEX idx_fk_language_id ON film(language_id);

CREATE INDEX idx_fk_original_language_id ON film(original_language_id);


---DROP SEQUENCE film_sequence;

CREATE SEQUENCE film_sequence;

CREATE OR REPLACE TRIGGER film_before_trigger
BEFORE INSERT ON film FOR EACH ROW 
BEGIN
 IF (:NEW.film_id IS NULL) THEN
   SELECT film_sequence.nextval INTO :NEW.film_id 
    FROM DUAL;
  END IF;
  :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER film_before_update
BEFORE UPDATE ON film FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/

--
-- Table structure for table film_actor
--

CREATE TABLE film_actor (
  actor_id INT NOT NULL,
  film_id  INT NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_film_actor PRIMARY KEY  (actor_id,film_id),
  CONSTRAINT fk_film_actor_actor FOREIGN KEY (actor_id) REFERENCES actor (actor_id),
  CONSTRAINT fk_film_actor_film FOREIGN KEY (film_id) REFERENCES film (film_id)
);

CREATE INDEX idx_fk_film_actor_film ON film_actor(film_id);

CREATE INDEX idx_fk_film_actor_actor ON film_actor(actor_id) ;

CREATE OR REPLACE TRIGGER film_actor_before_trigger
BEFORE INSERT ON film_actor FOR EACH ROW 
BEGIN
    :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER film_actor_before_update
BEFORE UPDATE ON film_actor FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/

--
-- Table structure for table film_category
--

CREATE TABLE film_category (
  film_id INT NOT NULL,
  category_id SMALLINT  NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_film_category PRIMARY KEY (film_id, category_id),
  CONSTRAINT fk_film_category_film FOREIGN KEY (film_id) REFERENCES film (film_id),
  CONSTRAINT fk_film_category_category FOREIGN KEY (category_id) REFERENCES category (category_id)
);

CREATE INDEX idx_fk_film_category_film ON film_category(film_id);

CREATE INDEX idx_fk_film_category_category ON film_category(category_id);


CREATE OR REPLACE TRIGGER film_category_before_trigger
BEFORE INSERT ON film_category FOR EACH ROW 
BEGIN
    :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER film_category_before_update
BEFORE UPDATE ON film_category FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/
--
-- Table structure for table film_text
--

CREATE TABLE film_text (
  film_id SMALLINT NOT NULL,
  title VARCHAR(255) NOT NULL,
  description CLOB,
  CONSTRAINT pk_film_text PRIMARY KEY  (film_id)
);

--
-- Table structure for table inventory
--

CREATE TABLE inventory (
  inventory_id INT NOT NULL,
  film_id INT NOT NULL,
  store_id INT NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_inventory PRIMARY KEY  (inventory_id),
  CONSTRAINT fk_inventory_film FOREIGN KEY (film_id) REFERENCES film (film_id)
);

CREATE INDEX idx_fk_film_id ON inventory(film_id);

CREATE INDEX idx_fk_film_id_store_id ON inventory(store_id,film_id);

---DROP SEQUENCE inventory_sequence;

CREATE SEQUENCE inventory_sequence;

CREATE OR REPLACE TRIGGER inventory_before_trigger
BEFORE INSERT ON inventory FOR EACH ROW 
BEGIN
 IF (:NEW.inventory_id IS NULL) THEN
   SELECT inventory_sequence.nextval INTO :NEW.inventory_id 
    FROM DUAL;
  END IF;
  :NEW.last_update:=current_date;
END;
/
CREATE OR REPLACE TRIGGER inventory_before_update
BEFORE UPDATE ON inventory FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/

--
-- Table structure for table staff
--

CREATE TABLE staff (
  staff_id SMALLINT NOT NULL,
  first_name VARCHAR(45) NOT NULL,
  last_name VARCHAR(45) NOT NULL,
  address_id INT NOT NULL,
  picture BLOB DEFAULT NULL,
  email VARCHAR(50) DEFAULT NULL,
  store_id INT NOT NULL,
  active SMALLINT DEFAULT 1 NOT NULL,
  username VARCHAR(16) NOT NULL,
  password VARCHAR(40) DEFAULT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_staff PRIMARY KEY  (staff_id),
  CONSTRAINT fk_staff_address FOREIGN KEY (address_id) REFERENCES address (address_id)
);

CREATE INDEX idx_fk_staff_store_id ON staff(store_id);

CREATE INDEX idx_fk_staff_address_id ON staff(address_id);

---DROP SEQUENCE inventory_sequence;

CREATE SEQUENCE staff_sequence;

CREATE OR REPLACE TRIGGER staff_before_trigger
BEFORE INSERT ON staff FOR EACH ROW 
BEGIN
 IF (:NEW.staff_id IS NULL) THEN
   SELECT staff_sequence.nextval INTO :NEW.staff_id 
    FROM DUAL;
  END IF;
  :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER staff_before_update
BEFORE UPDATE ON staff FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/

--
-- Table structure for table store
--

CREATE TABLE store (
  store_id INT NOT NULL,
  manager_staff_id SMALLINT NOT NULL,
  address_id INT NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_store PRIMARY KEY  (store_id),
  CONSTRAINT fk_store_staff FOREIGN KEY (manager_staff_id) REFERENCES staff (staff_id) ,
  CONSTRAINT fk_store_address FOREIGN KEY (address_id) REFERENCES address (address_id)
);

CREATE INDEX idx_store_fk_manager_staff_id ON store(manager_staff_id);

CREATE INDEX idx_fk_store_address ON store(address_id);

---DROP SEQUENCE store_sequence;

CREATE SEQUENCE store_sequence;


CREATE OR REPLACE TRIGGER store_before_trigger
BEFORE INSERT ON store FOR EACH ROW 
BEGIN
 IF (:NEW.store_id IS NULL) THEN
   SELECT store_sequence.nextval INTO :NEW.store_id 
    FROM DUAL;
  END IF;
 :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER store_before_update
BEFORE UPDATE ON store FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/

--
-- Table structure for table payment
--

CREATE TABLE payment (
  payment_id int NOT NULL,
  customer_id INT  NOT NULL,
  staff_id SMALLINT NOT NULL,
  rental_id INT DEFAULT NULL,
  amount DECIMAL(5,2) NOT NULL,
  payment_date DATE NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_payment PRIMARY KEY  (payment_id),
  CONSTRAINT fk_payment_customer FOREIGN KEY (customer_id) REFERENCES customer (customer_id) ,
  CONSTRAINT fk_payment_staff FOREIGN KEY (staff_id) REFERENCES staff (staff_id)
);

CREATE INDEX idx_fk_staff_id ON payment(staff_id);

CREATE INDEX idx_fk_customer_id ON payment(customer_id);

---DROP SEQUENCE payment_sequence;

CREATE SEQUENCE payment_sequence;

CREATE OR REPLACE TRIGGER payment_before_trigger
BEFORE INSERT ON payment FOR EACH ROW 
BEGIN
 IF (:NEW.payment_id IS NULL) THEN
   SELECT payment_sequence.nextval INTO :NEW.payment_id  
    FROM DUAL;
  END IF;
 :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER payment_before_update
BEFORE UPDATE ON payment FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/

CREATE TABLE rental (
  rental_id INT NOT NULL,
  rental_date DATE NOT NULL,
  inventory_id INT  NOT NULL,
  customer_id INT  NOT NULL,
  return_date DATE DEFAULT NULL,
  staff_id SMALLINT  NOT NULL,
  last_update DATE NOT NULL,
  CONSTRAINT pk_rental PRIMARY KEY (rental_id),
  CONSTRAINT fk_rental_staff FOREIGN KEY (staff_id) REFERENCES staff (staff_id) ,
  CONSTRAINT fk_rental_inventory FOREIGN KEY (inventory_id) REFERENCES inventory (inventory_id) ,
  CONSTRAINT fk_rental_customer FOREIGN KEY (customer_id) REFERENCES customer (customer_id)
);

CREATE INDEX idx_rental_fk_inventory_id ON rental(inventory_id);

CREATE INDEX idx_rental_fk_customer_id ON rental(customer_id);

CREATE INDEX idx_rental_fk_staff_id ON rental(staff_id);

CREATE UNIQUE INDEX idx_rental_uq  ON rental (rental_date,inventory_id,customer_id);


---DROP SEQUENCE payment_sequence;

CREATE SEQUENCE rental_sequence;

CREATE OR REPLACE TRIGGER rental_before_trigger
BEFORE INSERT ON rental FOR EACH ROW 
BEGIN
 IF (:NEW.rental_id IS NULL) THEN
   SELECT rental_sequence.nextval INTO :NEW.rental_id 
    FROM DUAL;
  END IF;
 :NEW.last_update:=current_date;
END;
/

CREATE OR REPLACE TRIGGER rental_before_update
BEFORE UPDATE ON rental FOR EACH ROW 
BEGIN
  :NEW.last_update:=current_date;
END;
/

-- FK CONSTRAINTS
ALTER TABLE customer ADD CONSTRAINT fk_customer_store FOREIGN KEY (store_id) REFERENCES store (store_id);

ALTER TABLE inventory ADD CONSTRAINT fk_inventory_store FOREIGN KEY (store_id) REFERENCES store (store_id);

ALTER TABLE staff ADD CONSTRAINT fk_staff_store FOREIGN KEY (store_id) REFERENCES store (store_id);

ALTER TABLE payment ADD CONSTRAINT fk_payment_rental FOREIGN KEY (rental_id) REFERENCES rental (rental_id) ON DELETE SET NULL;

--
-- View structure for view customer_list
--

CREATE OR REPLACE VIEW customer_list
AS
SELECT cu.customer_id AS ID,
       cu.first_name||' '||cu.last_name AS name,
       a.address AS address,
       a.postal_code AS zip_code,
       a.phone AS phone,
       city.city AS city,
       country.country AS country,
       decode(cu.active, 1,'active','') AS notes,
       cu.store_id AS SID
FROM customer cu JOIN address a ON cu.address_id = a.address_id JOIN city ON a.city_id = city.city_id
    JOIN country ON city.country_id = country.country_id;

--
-- View structure for view film_list
--

CREATE OR REPLACE VIEW film_list
AS
SELECT film.film_id AS FID,
       film.title AS title,
       film.description AS description,
       category.name AS category,
       film.rental_rate AS price,
       film.length AS length,
       film.rating AS rating,
       actor.first_name||' '||actor.last_name AS actors
FROM category LEFT JOIN film_category ON category.category_id = film_category.category_id LEFT JOIN film ON film_category.film_id = film.film_id
        JOIN film_actor ON film.film_id = film_actor.film_id
    JOIN actor ON film_actor.actor_id = actor.actor_id;

--
-- View structure for view staff_list
--

CREATE OR REPLACE VIEW staff_list
AS
SELECT s.staff_id AS ID,
       s.first_name||' '||s.last_name AS name,
       a.address AS address,
       a.postal_code AS zip_code,
       a.phone AS phone,
       city.city AS city,
       country.country AS country,
       s.store_id AS SID
FROM staff s JOIN address a ON s.address_id = a.address_id JOIN city ON a.city_id = city.city_id
    JOIN country ON city.country_id = country.country_id;
    
--
-- View structure for view sales_by_store
--

CREATE OR REPLACE VIEW sales_by_store
AS
SELECT
  s.store_id
 ,c.city||','||cy.country AS store
 ,m.first_name||' '||m.last_name AS manager
 ,SUM(p.amount) AS total_sales
FROM payment p
INNER JOIN rental r ON p.rental_id = r.rental_id
INNER JOIN inventory i ON r.inventory_id = i.inventory_id
INNER JOIN store s ON i.store_id = s.store_id
INNER JOIN address a ON s.address_id = a.address_id
INNER JOIN city c ON a.city_id = c.city_id
INNER JOIN country cy ON c.country_id = cy.country_id
INNER JOIN staff m ON s.manager_staff_id = m.staff_id
GROUP BY  
  s.store_id
, c.city||','||cy.country
, m.first_name||' '||m.last_name;

--
-- View structure for view sales_by_film_category
--
-- Note that total sales will add up to >100% because
-- some titles belong to more than 1 category
--

CREATE OR REPLACE VIEW sales_by_film_category
AS
SELECT
c.name AS category 
, SUM(p.amount) AS total_sales 
FROM payment p
INNER JOIN rental r ON p.rental_id = r.rental_id
INNER JOIN inventory i ON r.inventory_id = i.inventory_id
INNER JOIN film f ON i.film_id = f.film_id
INNER JOIN film_category fc ON f.film_id = fc.film_id
INNER JOIN category c ON fc.category_id = c.category_id
GROUP BY c.name;

--
-- View structure for view actor_info
--

/*
CREATE VIEW actor_info
AS
SELECT
a.actor_id,
a.first_name,
a.last_name,
GROUP_CONCAT(DISTINCT CONCAT(c.name, ': ',
        (SELECT GROUP_CONCAT(f.title ORDER BY f.title SEPARATOR ', ')
                    FROM sakila.film f
                    INNER JOIN sakila.film_category fc
                      ON f.film_id = fc.film_id
                    INNER JOIN sakila.film_actor fa
                      ON f.film_id = fa.film_id
                    WHERE fc.category_id = c.category_id
                    AND fa.actor_id = a.actor_id
                 )
             )
             ORDER BY c.name SEPARATOR '; ')
AS film_info
FROM sakila.actor a
LEFT JOIN sakila.film_actor fa
  ON a.actor_id = fa.actor_id
LEFT JOIN sakila.film_category fc
  ON fa.film_id = fc.film_id
LEFT JOIN sakila.category c
  ON fc.category_id = c.category_id
GROUP BY a.actor_id, a.first_name, a.last_name;
*/

-- TO DO PROCEDURES