SQL ZOO练习——More JOIN operations

1. List the films where the yr is 1962 [Show id, title]

SELECT id, title
FROM movie
WHERE yr=1962

2. Give year of 'Citizen Kane'.

SELECT yr 
FROM movie
WHERE title = 'Citizen Kane'

3. List all of the Star Trek movies, include the id, titleand 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

4. What id number does the actor 'Glenn Close' have?

SELECT id 
FROM actor
WHERE name = 'Glenn Close'

5. What is the id of the film 'Casablanca'

SELECT id 
FROM movie
WHERE title = 'Casablanca'

6. Obtain the cast list for 'Casablanca'.

SELECT name 
FROM actor 
JOIN casting ON actor.id = casting.actorid
JOIN movie ON movie.id = casting.movieid
WHERE movie.id = 11768

7. Obtain the cast list for the film 'Alien'

SELECT name 
FROM actor 
JOIN casting ON actor.id = casting.actorid
JOIN movie ON movie.id = casting.movieid
WHERE title = 'Alien'

8. List the films in which 'Harrison Ford' has appeared

SELECT title 
FROM movie 
JOIN casting ON movie.id = casting.movieid
JOIN actor ON actor.id = casting.actorid
WHERE actor.name = 'Harrison Ford'

9. List the films where 'Harrison Ford' has appeared - but not in the starring role. 

SELECT DISTINCT title 
FROM movie 
JOIN casting ON movie.id = casting.movieid
JOIN actor ON actor.id = casting.actorid
WHERE actor.name = 'Harrison Ford'
AND casting.ord <> 1

10. List the films together with the leading star for all 1962 films.

SELECT title, name 
FROM movie
JOIN casting ON movie.id = casting.movieid
JOIN actor ON actor.id = casting.actorid
WHERE movie.yr = 1962
AND casting.ord = 1

11. Which were the busiest years for 'John Travolta', 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='John Travolta'
GROUP BY yr
HAVING COUNT(title)=(SELECT MAX(c) FROM
(SELECT yr,COUNT(title) AS c FROM
   movie JOIN casting ON movie.id=movieid
         JOIN actor   ON actorid=actor.id
 where name='John Travolta'
 GROUP BY yr) AS t
)

# 原答案哈:-D

12. List the film title and the leading actor for all of the films 'Julie Andrews' played in.

SELECT DISTINCT title, name 
FROM movie
JOIN casting ON movie.id = casting.movieid
JOIN actor ON actor.id = casting.actorid
WHERE movie.id IN (
  SELECT movie.id 
  FROM movie 
  JOIN casting ON movie.id = casting.movieid
  JOIN actor ON actor.id = casting.actorid
  WHERE actor.name = 'Julie Andrews')
AND casting.ord = 1

13. Obtain a list, in alphabetical order, of actors who've had at least 30 starring roles.

SELECT name 
FROM actor
JOIN casting ON actor.id = casting.actorid
WHERE casting.ord = 1
GROUP BY name
HAVING COUNT(name) >= 30
ORDER BY name

14. 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 
JOIN casting ON (movie.id = casting.movieid)
WHERE yr = 1978
GROUP BY title
ORDER BY COUNT(actorid) DESC, title 

15. List all the people who have worked with 'Art Garfunkel'.

SELECT name 
FROM actor 
JOIN casting ON actor.id = casting.actorid
JOIN movie ON movie.id = casting.movieid
WHERE movie.id IN 
  (SELECT movie.id 
  FROM movie
  JOIN casting ON movie.id = casting.movieid
  JOIN actor ON actor.id = casting.actorid
  WHERE name = 'Art Garfunkel') 
AND name <> 'Art Garfunkel'