SQL Exercises, Practice, Solution - SUBQUERIES exercises on movie Database

SQL [16 exercises with solution]

You may read our SQL Subqueries tutorial before solving the following exercises.

[An editor is available at the bottom of the page to write and execute the scripts.]

Sample Database:

1. From the following table, write a SQL query to find the actors who played a role in the movie 'Annie Hall'. Return all the fields of actor table.  Go to the editor

Sample table: actor

Sample table: movie_cast

Sample table: movie

Sample Output:

 act_id |      act_fname       |      act_lname       | act_gender
--------+----------------------+----------------------+------------
    111 | Woody                | Allen                | M
(1 row)

Click me to see the solution

2. From the following tables, write a SQL query to find the director who directed a movie that casted a role for 'Eyes Wide Shut'. Return director first name, last name.  Go to the editor

Sample table: director

Sample table: movie_direction

Sample table: movie_cast

Sample table: movie

Sample Output:

      dir_fname       |      dir_lname
----------------------+----------------------
 Stanley              | Kubrick
(1 row)

Click me to see the solution

3. From the following table, write a SQL query to find those movies, which released in the country besides UK. Return movie title, movie year, movie time, date of release, releasing country.  Go to the editor

Sample table: movie

Sample Output:

                     mov_title                      | mov_year | mov_time | date_of_release | releasing_country
----------------------------------------------------+----------+----------+-----------------+-------------------
 The Innocents                                      |     1961 |      100 | 1962-02-19      | SW
 Annie Hall                                         |     1977 |       93 | 1977-04-20      | USA
 Seven Samurai                                      |     1954 |      207 | 1954-04-26      | JP
(3 rows)

Click me to see the solution

4. From the following tables, write a SQL query to find those movies where reviewer is unknown. Return movie title, year, release date, director first name, last name, actor first name, last name.  Go to the editor

Sample table: movie

Sample table: actor

Sample table: director

Sample table: movie_direction

Sample table: movie_cast

Sample table: reviewer

Sample table: rating

Sample Output:

                     mov_title                      | mov_year | mov_dt_rel |      dir_fname       |      dir_lname       |      act_fname       |      act_lname
----------------------------------------------------+----------+------------+----------------------+----------------------+----------------------+----------------------
 Blade Runner                                       |     1982 | 1982-09-09 | Ridley               | Scott                | Harrison             | Ford
 Princess Mononoke                                  |     1997 | 2001-10-19 | Hayao                | Miyazaki             | Claire              | Danes
(2 rows)

Click me to see the solution

5. From the following tables, write a SQL query to find those movies directed by the director whose first name is ‘Woddy’ and last name is ‘Allen’. Return movie title.  Go to the editor

Sample table: movie

Sample table: director

Sample table: movie_direction

Sample Output:

                     mov_title
----------------------------------------------------
 Annie Hall
(1 row)

Click me to see the solution

6. From the following tables, write a SQL query to find those years, which produced at least one movie and that, received a rating of more than three stars. Sort the result-set in ascending order by movie year. Return movie year.  Go to the editor

Sample table: movie

Sample table: rating

Sample Output:

 mov_year
----------
     1958
     1961
     1962
     1977
.....

Click me to see the solution

7. From the following table, write a SQL query to find those movies, which have no ratings. Return movie title.  Go to the editor

Sample table: movie

Sample table: rating

Sample Output:

                     mov_title
----------------------------------------------------
 Deliverance
 Amadeus
 Spirited Away
 The Prestige
 .....
 

Click me to see the solution

8. From the following tables, write a SQL query to find those reviewers who have rated nothing for some movies. Return reviewer name.  Go to the editor

Sample table: reviewer

Sample table: rating

Sample Output:

            rev_name
--------------------------------
 Neal Wruck
 Scott LeBrun
(2 rows)

Click me to see the solution

9. From the following tables, write a SQL query to find those movies, which reviewed by a reviewer and got a rating. Sort the result-set in ascending order by reviewer name, movie title, review Stars. Return reviewer name, movie title, review Stars.  Go to the editor

Sample table: reviewer

Sample table: rating

Sample table: movie

Sample Output:

            rev_name            |                     mov_title                      | rev_stars
--------------------------------+----------------------------------------------------+-----------
 Brandt Sponseller              | Aliens                                             |      8.40
 Flagrant Baronessa             | Lawrence of Arabia                                 |      8.30
 Hannah Steele                  | Donnie Darko                                       |      8.10
 Jack Malvern                   | The Innocents                                      |      7.90
 .....
 

Click me to see the solution

10. From the following tables, write a SQL query to find those reviewers who rated more than one movie. Group the result set on reviewer’s name, movie title. Return reviewer’s name, movie title.  Go to the editor

Sample table: reviewer

Sample table: rating

Sample table : movie

Sample Output:

            rev_name            |                     mov_title
--------------------------------+----------------------------------------------------
 Righty Sock                    | Titanic
 Righty Sock                    | Vertigo
(2 rows)

Click me to see the solution

11. From the following tables, write a SQL query to find those movies, which have received highest number of stars. Group the result set on movie title and sorts the result-set in ascending order by movie title. Return movie title and maximum number of review stars.  Go to the editor

Sample table: rating

Sample table: movie

Sample Output:

                     mov_title                      | max
----------------------------------------------------+------
 Aliens                                             | 8.40
 American Beauty                                    | 7.00
 Annie Hall                                         | 8.10
 Avatar                                             | 7.30
 .....
 

Click me to see the solution

12. From the following tables, write a SQL query to find all reviewers who rated the movie 'American Beauty'. Return reviewer name.  Go to the editor

Sample table: reviewer

Sample table: rating

Sample table: movie

Sample Output:

            rev_name
--------------------------------
 Sasha Goldshtein
(1 row)

Click me to see the solution

13. From the following tables, write a SQL query to find the movies, which have reviewed by any reviewer body except by 'Paul Monks'. Return movie title.  Go to the editor

Sample table: reviewer

Sample table: rating

Sample table: movie

Sample Output:

                     mov_title
----------------------------------------------------
 Avatar
 Lawrence of Arabia
 Donnie Darko
 Aliens
 .....
 

Click me to see the solution

14. From the following tables, write a SQL query to find the lowest rated movies. Return reviewer name, movie title, and number of stars for those movies.  Go to the editor

Sample table: reviewer

Sample table: rating

Sample table: movie

Sample Output:

            rev_name            |                     mov_title                      | rev_stars
--------------------------------+----------------------------------------------------+-----------
 Paul Monks                     | Boogie Nights                                      |      3.00
(1 row)

Click me to see the solution

15. From the following tables, write a SQL query to find the movies directed by 'James Cameron'. Return movie title.  Go to the editor

Sample table: director

Sample table: movie_direction

Sample table: movie

Sample Output:

                     mov_title
----------------------------------------------------
 Titanic
 Aliens
(2 rows)

Click me to see the solution

16. Write a query in SQL to find the name of those movies where one or more actors acted in two or more movies.  Go to the editor

Sample table: movie

Sample table: movie_cast

Sample table: actor

Click me to see the solution

Keep Learning: SQL Subqueries, SQL Single Row Subqueries, SQL Multiple Row and Column Subqueries, SQL Correlated Subqueries, SQL Nested subqueries.

Practice Online

More to Come !

Query visualizations are generated using Postgres Explain Visualizer (pev)

Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.