SQL exercises on movie Database: Find all the movies with title, year, date of release, duration, and name of the director which released before 1st January 1989, and sort the result in descending order on release date
SQL movie Database: Join Exercise-9 with Solution
9. From the following tables, write a SQL query to find the movies released before 1st January 1989. Sort the result-set in descending order by date of release. Return movie title, release year, date of release, duration, and first and last name of the director.
Sample table: moviemov_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 | UKSample 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 | JacksonSample 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 Solution:
-- Selecting specific columns from the tables movie, movie_direction, and director
SELECT movie.mov_title, mov_year, mov_dt_rel,
mov_time,dir_fname, dir_lname
-- Joining the movie and movie_direction tables based on the mov_id column
FROM movie
JOIN movie_direction
ON movie.mov_id = movie_direction.mov_id
-- Joining the result with the director table based on the dir_id column
JOIN director
ON movie_direction.dir_id=director.dir_id
-- Filtering the result to include only records with mov_dt_rel before '01/01/1989'
WHERE mov_dt_rel < '01/01/1989'
-- Ordering the result by mov_dt_rel in descending order
ORDER BY mov_dt_rel DESC;
Sample Output:
mov_title | mov_year | mov_dt_rel | mov_time | dir_fname | dir_lname ----------------------------------------------------+----------+------------+----------+----------------------+---------------------- Aliens | 1986 | 1986-08-29 | 137 | James | Cameron Amadeus | 1984 | 1985-01-07 | 160 | Milos | Forman Deliverance | 1972 | 1982-10-05 | 109 | John | Boorman Blade Runner | 1982 | 1982-09-09 | 117 | Ridley | Scott The Deer Hunter | 1978 | 1979-03-08 | 183 | Michael | Cimino Annie Hall | 1977 | 1977-04-20 | 93 | Woody | Allen Chinatown | 1974 | 1974-08-09 | 130 | Roman | Polanski Lawrence of Arabia | 1962 | 1962-12-11 | 216 | David | Lean The Innocents | 1961 | 1962-02-19 | 100 | Jack | Clayton Vertigo | 1958 | 1958-08-24 | 128 | Alfred | Hitchcock (10 rows)
Code Explanation :
The said query in SQL which selects the movie title, year, release date, duration, director first name, and director last name for all movies that were released before January 1st, 1989. The results are sorted in descending order by release date.
The JOIN clause joins the movie table, movie_direction table, and director table based on the movie ID and director ID.
The WHERE clause filters the results to include only those movies that were released before January 1st, 1989.
Then sorts the results in descending order by release date.
Alternative Solutions:
Using WHERE Clause with Table Aliases:
SELECT m.mov_title, m.mov_year, m.mov_dt_rel, m.mov_time, d.dir_fname, d.dir_lname
FROM movie m, movie_direction md, director d
WHERE m.mov_id = md.mov_id
AND md.dir_id = d.dir_id
AND m.mov_dt_rel < '1989-01-01'
ORDER BY m.mov_dt_rel DESC;
Explanation:
This query uses the comma-separated syntax for joining tables and specifies the join conditions in the WHERE clause. It then applies a WHERE clause to filter for movies released before January 1, 1989, and selects the movie title, year, release date, runtime, director's first name, and last name. The results are ordered by release date in descending order.
Relational Algebra Expression:
Relational Algebra Tree:
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Query Visualization:
Duration:
Rows:
Cost:
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