SQL exercises on movie Database: Find the titles of all movies that have no ratings

SQL movie Database: Subquery Exercise-7 with Solution

7. From the following table, write a SQL query to search for movies that do not have any ratings. Return movie title.

Sample table: movie

Sample table: rating

Sample Solution:

SELECT DISTINCT mov_title 
FROM movie 
WHERE mov_id IN (
SELECT mov_id 
FROM movie 
WHERE mov_id NOT IN (
SELECT mov_id FROM Rating));

Sample Output:

                     mov_title
----------------------------------------------------
 Deliverance
 Amadeus
 Spirited Away
 The Prestige
 The Deer Hunter
 Eyes Wide Shut
 Back to the Future
 The Shawshank Redemption
 Seven Samurai
(9 rows)

Code Explanation:

The said query in SQL which selects distinct movie titles from the 'movie' table where the corresponding movie IDs are not present in the 'Rating' table. The results are ordered by movie title in ascending order.
The query uses a subquery to find the movie IDs that are not present in the 'Rating' table, and then selects the distinct movie titles corresponding to those IDs. The "DISTINCT" keyword ensures that only unique movie titles are returned.

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Query Visualization:

Duration:

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