07_more_join.sql

-- List the films where the yr is 1962 [Show id, title]
SELECT id, title
 FROM movie
 WHERE yr=1962  

--  Give year of 'Citizen Kane'.
SELECT yr
FROM movie 
WHERE title='Citizen Kane'

-- List all of the Star Trek movies, include the id, title and yr (all of these movies include the words Star Trek in the title). Order results by year.
SELECT id, title, yr
FROM movie 
WHERE title LIKE '%Star Trek%'
ORDER BY yr ASC

-- What id number does the actor 'Glenn Close' have?
SELECT id
 FROM actor
 WHERE name='Glenn Close'

--  What is the id of the film 'Casablanca'
SELECT id
 FROM movie
WHERE title = 'Casablanca'

-- Obtain the cast list for 'Casablanca'.
-- what is a cast list?
-- Use movieid=11768, (or whatever value you got from the previous question)
SELECT name
 FROM actor
JOIN casting ON
id = actorid AND movieid = 11768

-- Obtain the cast list for the film 'Alien'
SELECT name
 FROM actor
JOIN casting ON
id = actorid AND movieid = 
(SELECT id
 FROM movie
WHERE title = 'Alien')

-- List the films in which 'Harrison Ford' has appeared
SELECT title
FROM movie
JOIN casting
ON (id = movieid
AND actorid=
(SELECT id 
FROM actor 
WHERE name = 'Harrison Ford'))

-- List the films where 'Harrison Ford' has appeared - but not in the starring role. [Note: the ord field of casting gives the position of the actor. If ord=1 then this actor is in the starring role]
SELECT title
FROM movie
JOIN casting
ON (id = movieid
AND actorid=
(SELECT id 
FROM actor 
WHERE name = 'Harrison Ford') AND ord !=1)

-- List the films together with the leading star for all 1962 films.
SELECT title, name
FROM movie 
JOIN casting
ON (id=movieid)
JOIN actor 
ON (actor.id = actorid)
WHERE ord = 1
AND yr = 1962

-- Which were the busiest years for 'Rock Hudson', show the year and the number of movies he made each year for any year in which he made more than 2 movies.
SELECT
  yr,
  COUNT(title)
FROM
  movie
  JOIN casting ON movie.id = movieid
  JOIN actor ON actorid = actor.id
WHERE
  name = 'Rock Hudson'
GROUP BY
  yr
HAVING
  COUNT(title) > 2;

--   List the film title and the leading actor for all of the films 'Julie Andrews' played in.
SELECT
  title,
  name
FROM
  movie
  JOIN casting ON movieid = movie.id
  AND ord = 1
  JOIN actor ON actorid = actor.id
WHERE
  movie.id IN(
    SELECT
      movieid
    FROM
      casting
    WHERE
      actorid IN (
        SELECT
          id
        FROM
          actor
        WHERE
          name = 'Julie Andrews'
      )
  );

  
-- Obtain a list, in alphabetical order, of actors who've had at least 15 starring roles.
SELECT
  name
FROM
  casting c
  JOIN actor a ON a.id = c.actorid
WHERE
  ord = 1
GROUP BY
  name
HAVING
  sum(ord) >= 15
ORDER BY
  name;

--   List the films released in the year 1978 ordered by the number of actors in the cast, then by title.
SELECT
  title,
  count(actorid)
FROM
  movie m
  JOIN casting c ON c.movieid = m.id
WHERE
  yr = 1978
GROUP BY
  title
ORDER BY
  count(actorid) DESC,
  title;

--   List all the people who have worked with 'Art Garfunkel'.
SELECT
  name
FROM
  actor
  JOIN casting ON actor.id = actorid
WHERE
  movieid IN (
    SELECT
      movieid
    FROM
      casting
    WHERE
      actorid IN (
        SELECT
          id
        FROM
          actor
        WHERE
          name = 'art garfunkel'
      )
  )
  AND name != 'Art Garfunkel';