SQL exercises on movie Database: Find the titles of all movies which have been reviewed by anybody except by Paul Monks
13. From the following table, write a SQL query to find the movies that have not been reviewed by any reviewer body other than 'Paul Monks'. Return movie title.
Sample table: reviewerrev_id | rev_name --------+-------------------------------- 9001 | Righty Sock 9002 | Jack Malvern 9003 | Flagrant Baronessa 9004 | Alec Shaw 9005 | 9006 | Victor Woeltjen 9007 | Simon Wright 9008 | Neal Wruck 9009 | Paul Monks 9010 | Mike Salvati 9011 | 9012 | Wesley S. Walker 9013 | Sasha Goldshtein 9014 | Josh Cates 9015 | Krug Stillo 9016 | Scott LeBrun 9017 | Hannah Steele 9018 | Vincent Cadena 9019 | Brandt Sponseller 9020 | Richard AdamsSample table: rating
mov_id | rev_id | rev_stars | num_o_ratings
--------+--------+-----------+---------------
901 | 9001 | 8.40 | 263575
902 | 9002 | 7.90 | 20207
903 | 9003 | 8.30 | 202778
906 | 9005 | 8.20 | 484746
924 | 9006 | 7.30 |
908 | 9007 | 8.60 | 779489
909 | 9008 | | 227235
910 | 9009 | 3.00 | 195961
911 | 9010 | 8.10 | 203875
912 | 9011 | 8.40 |
914 | 9013 | 7.00 | 862618
915 | 9001 | 7.70 | 830095
916 | 9014 | 4.00 | 642132
925 | 9015 | 7.70 | 81328
918 | 9016 | | 580301
920 | 9017 | 8.10 | 609451
921 | 9018 | 8.00 | 667758
922 | 9019 | 8.40 | 511613
923 | 9020 | 6.70 | 13091
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 movie titles
-- Using the 'movie' table
-- Filtering rows where movie.mov_id is in the result of a subquery
-- The subquery selects mov_id from the 'rating' table
-- where rev_id is not in the result of another subquery
-- The inner subquery selects rev_id from the 'reviewer' table
-- where rev_name is equal to 'Paul Monks'
SELECT movie.mov_title
FROM movie
WHERE movie.mov_id IN (
SELECT mov_id
FROM rating
WHERE rev_id NOT IN (
SELECT rev_id
FROM reviewer
WHERE rev_name='Paul Monks'
)
);
Sample Output:
mov_title
----------------------------------------------------
Avatar
Lawrence of Arabia
Donnie Darko
Aliens
Vertigo
The Innocents
Slumdog Millionaire
Annie Hall
Good Will Hunting
American Beauty
Titanic
Beyond the Sea
Trainspotting
Princess Mononoke
The Usual Suspects
Blade Runner
Braveheart
Chinatown
(18 rows)
Code Explanation:
The said query in SQL that retrieves the titles of all movies that have been reviewed by reviewers other than "Paul Monks".
1. The inner most subquery selects the ID of the reviewer with the name "Paul Monks".
2. The another subquery selects all the movie IDs from the rating table where the reviewer ID is not in another subquery of step 1.
3. The condition specifies that must be met for a row to be included in the results. That is for movies where their IDs are included in the subquery in step 2.
Alternative Solution:
Using INNER JOIN:
SELECT m.mov_title
FROM movie m
INNER JOIN rating r ON m.mov_id = r.mov_id
WHERE r.rev_id NOT IN (
SELECT rev_id
FROM reviewer
WHERE rev_name = 'Paul Monks'
);
Explanation:
This query uses an INNER JOIN to combine the movie and rating tables based on mov_id. It then applies a WHERE clause to filter for reviews where the reviewer name is not 'Paul Monks'.
Practice Online
Query Visualization:
Duration:
Rows:
Cost:
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Previous: From the following tables, write a SQL query to find all reviewers who rated the movie ‘American Beauty’. Return reviewer name.
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