SQL exercises on movie Database: Find the name of the director who directed a movie that casted a role for 'Eyes Wide Shut'
2. From the following tables, write a SQL query to find the director of a film that cast a role in 'Eyes Wide Shut'. Return director first name, last name.
Sample table: director
dir_id | dir_fname | dir_lname
--------+----------------------+----------------------
201 | Alfred | Hitchcock
202 | Jack | Clayton
203 | David | Lean
204 | Michael | Cimino
205 | Milos | Forman
206 | Ridley | Scott
207 | Stanley | Kubrick
208 | Bryan | Singer
209 | Roman | Polanski
210 | Paul | Thomas Anderson
211 | Woody | Allen
212 | Hayao | Miyazaki
213 | Frank | Darabont
214 | Sam | Mendes
215 | James | Cameron
216 | Gus | Van Sant
217 | John | Boorman
218 | Danny | Boyle
219 | Christopher | Nolan
220 | Richard | Kelly
221 | Kevin | Spacey
222 | Andrei | Tarkovsky
223 | Peter | Jackson
Sample table: movie_direction
dir_id | mov_id
--------+--------
201 | 901
202 | 902
203 | 903
204 | 904
205 | 905
206 | 906
207 | 907
208 | 908
209 | 909
210 | 910
211 | 911
212 | 912
213 | 913
214 | 914
215 | 915
216 | 916
217 | 917
218 | 918
219 | 919
220 | 920
218 | 921
215 | 922
221 | 923
Sample table: movie_cast
act_id | mov_id | role
--------+--------+--------------------------------
101 | 901 | John Scottie Ferguson
102 | 902 | Miss Giddens
103 | 903 | T.E. Lawrence
104 | 904 | Michael
105 | 905 | Antonio Salieri
106 | 906 | Rick Deckard
107 | 907 | Alice Harford
108 | 908 | McManus
110 | 910 | Eddie Adams
111 | 911 | Alvy Singer
112 | 912 | San
113 | 913 | Andy Dufresne
114 | 914 | Lester Burnham
115 | 915 | Rose DeWitt Bukater
116 | 916 | Sean Maguire
117 | 917 | Ed
118 | 918 | Renton
120 | 920 | Elizabeth Darko
121 | 921 | Older Jamal
122 | 922 | Ripley
114 | 923 | Bobby Darin
109 | 909 | J.J. Gittes
119 | 919 | Alfred Borden
Sample table: movie
mov_id | mov_title | mov_year | mov_time | mov_lang | mov_dt_rel | mov_rel_country
--------+----------------------------------------------------+----------+----------+-----------------+------------+-----------------
901 | Vertigo | 1958 | 128 | English | 1958-08-24 | UK
902 | The Innocents | 1961 | 100 | English | 1962-02-19 | SW
903 | Lawrence of Arabia | 1962 | 216 | English | 1962-12-11 | UK
904 | The Deer Hunter | 1978 | 183 | English | 1979-03-08 | UK
905 | Amadeus | 1984 | 160 | English | 1985-01-07 | UK
906 | Blade Runner | 1982 | 117 | English | 1982-09-09 | UK
907 | Eyes Wide Shut | 1999 | 159 | English | | UK
908 | The Usual Suspects | 1995 | 106 | English | 1995-08-25 | UK
909 | Chinatown | 1974 | 130 | English | 1974-08-09 | UK
910 | Boogie Nights | 1997 | 155 | English | 1998-02-16 | UK
911 | Annie Hall | 1977 | 93 | English | 1977-04-20 | USA
912 | Princess Mononoke | 1997 | 134 | Japanese | 2001-10-19 | UK
913 | The Shawshank Redemption | 1994 | 142 | English | 1995-02-17 | UK
914 | American Beauty | 1999 | 122 | English | | UK
915 | Titanic | 1997 | 194 | English | 1998-01-23 | UK
916 | Good Will Hunting | 1997 | 126 | English | 1998-06-03 | UK
917 | Deliverance | 1972 | 109 | English | 1982-10-05 | UK
918 | Trainspotting | 1996 | 94 | English | 1996-02-23 | UK
919 | The Prestige | 2006 | 130 | English | 2006-11-10 | UK
920 | Donnie Darko | 2001 | 113 | English | | UK
921 | Slumdog Millionaire | 2008 | 120 | English | 2009-01-09 | UK
922 | Aliens | 1986 | 137 | English | 1986-08-29 | UK
923 | Beyond the Sea | 2004 | 118 | English | 2004-11-26 | UK
924 | Avatar | 2009 | 162 | English | 2009-12-17 | UK
926 | Seven Samurai | 1954 | 207 | Japanese | 1954-04-26 | JP
927 | Spirited Away | 2001 | 125 | Japanese | 2003-09-12 | UK
928 | Back to the Future | 1985 | 116 | English | 1985-12-04 | UK
925 | Braveheart | 1995 | 178 | English | 1995-09-08 | UK
Sample Solution:
-- Selecting 'dir_fname' and 'dir_lname' from the 'director' table
-- Filtering results where 'dir_id' is in the subquery result
SELECT dir_fname, dir_lname
FROM director
WHERE dir_id IN (
-- Selecting 'dir_id' from 'movie_direction' where 'mov_id' is in the subquery result
SELECT dir_id
FROM movie_direction
WHERE mov_id IN (
-- Selecting 'mov_id' from 'movie_cast' where 'role' is any value in the subquery result
SELECT mov_id
FROM movie_cast
WHERE role = ANY (
-- Selecting 'role' from 'movie_cast' where 'mov_id' is in the subquery result
SELECT role
FROM movie_cast
WHERE mov_id IN (
-- Selecting 'mov_id' from 'movie' where 'mov_title' is 'Eyes Wide Shut'
SELECT mov_id
FROM movie
WHERE mov_title='Eyes Wide Shut'
)
)
)
);
Sample Output:
dir_fname | dir_lname
----------------------+----------------------
Stanley | Kubrick
(1 row)
Code Explanation:
The said query in SQL that retrieves the first and last name of the
director(s) who directed a movie in which any actor played
a role that was also played in the movie 'Eyes Wide Shut'.
1. In the innermost subquery, it selects the mov_id of the movie 'Eyes Wide Shut' from the movie table.
Then, it uses that mov_id to select all roles played in
that movie from the movie_cast table.
2. Then that list of roles are use to select all mov_id values from the movie_cast table where the same
roles were played. This effectively finds all movies that have at
least one actor playing the same roles as in 'Eyes Wide Shut'.
3. Then, it selects the dir_id values from the movie_direction table for each of those movies found in the step 2.
4. Then the outermost query selects the first and last names of
the director(s) whose dir_id values were found in the step 3.
Alternative Solutions:
Alternative 1:
SELECT d.dir_fname, d.dir_lname
FROM director d
JOIN movie_direction md ON d.dir_id = md.dir_id
JOIN movie_cast mc ON md.mov_id = mc.mov_id
WHERE mc.role = ANY (
SELECT mc2.role
FROM movie_cast mc2
JOIN movie m ON mc2.mov_id = m.mov_id
WHERE m.mov_title = 'Eyes Wide Shut'
);
Explanation:
This query retrieves directors who have worked on the movie "Eyes Wide Shut" by navigating through the relationships between the director, movie_direction, and movie_cast tables, filtering based on the role of cast members.
Alternative 2:
SELECT d.dir_fname, d.dir_lname
FROM director d
JOIN movie_direction md ON d.dir_id = md.dir_id
JOIN movie_cast mc ON md.mov_id = mc.mov_id
JOIN movie m ON mc.mov_id = m.mov_id
WHERE m.mov_title = 'Eyes Wide Shut';
Explanation:
This SQL query retrieves the first and last names of directors (dir_fname and dir_lname) who have worked on the movie "Eyes Wide Shut". It joins the director table with the movie_direction table based on the director IDs (dir_id). This allows us to associate directors with movies.
Alternative 3:
SELECT d.dir_fname, d.dir_lname
FROM director d
WHERE EXISTS (
SELECT 1
FROM movie_direction md
JOIN movie_cast mc ON md.mov_id = mc.mov_id
WHERE md.dir_id = d.dir_id
AND mc.role = ANY (
SELECT mc2.role
FROM movie_cast mc2
JOIN movie m ON mc2.mov_id = m.mov_id
WHERE m.mov_title = 'Eyes Wide Shut'
)
);
Explanation:
This query retrieves directors who have worked on the movie "Eyes Wide Shut" by checking if there exists a connection between the director, movie direction, and movie cast tables for that specific movie title.
Alternative 4:
SELECT d.dir_fname, d.dir_lname
FROM director d, movie_direction md, movie_cast mc, movie m
WHERE d.dir_id = md.dir_id
AND md.mov_id = mc.mov_id
AND mc.mov_id = m.mov_id
AND mc.role = ANY (
SELECT mc2.role
FROM movie_cast mc2
WHERE mc2.mov_id = (
SELECT mov_id
FROM movie
WHERE mov_title = 'Eyes Wide Shut'
)
);
Explanation:
This query retrieves directors who have worked on the movie "Eyes Wide Shut" by joining multiple tables ('director', 'movie_direction', 'movie_cast', and 'movie') and applying conditions to establish the relationships and filter the results based on roles.
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