untitled-4.md

More JOIN operations

This tutorial introduces the notion of a join. The database consists of three tables movie , actor and casting .

movie
id	title	yr	director	budget	gross

actor
id	name

casting
movieid	actorid	ord

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, 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

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'.what is a cast list?

The cast list is the names of the actors who were in the movie.

Use movieid=11768, (or whatever value you got from the previous question)

{% tabs %} {% tab title="SQL" %}

SELECT name
FROM actor 
JOIN casting
ON id = actorid 
WHERE movieid = 27;

{% endtab %}

{% tab title="SQL" %}

SELECT name
FROM actor, casting
WHERE id=actorid AND movieid =27

{% endtab %} {% endtabs %}

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

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

8.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');

9.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);

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 AND ord = 1
WHERE yr = 1962;

11.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

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

13.Obtain a list, in alphabetical order, of actors who've had at least 15 starring roles.

SELECT name
FROM actor
JOIN casting
ON id = actorid
WHERE ord = 1
GROUP BY name
HAVING COUNT(name) >= 15

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