SQL exercises on movie Database: Find the titles of all movies directed by James Cameron
SQL movie Database: Subquery Exercise-15 with Solution
15. From the following tables, write a SQL query to find the movies directed by 'James Cameron'. Return movie title.
Sample table: director
Sample table: movie_direction
Sample table: movie
Sample Solution:
SELECT mov_title
FROM movie
WHERE mov_id IN (
SELECT mov_id
FROM movie_direction
WHERE dir_id IN (
SELECT dir_id
FROM director
WHERE dir_fname = 'James' AND dir_lname='Cameron'
));
OR
SELECT mov_title FROM movie
JOIN movie_direction
ON movie.mov_id=movie_direction.mov_id
JOIN director
ON movie_direction.dir_id=director.dir_id
WHERE dir_fname = 'James' AND dir_lname='Cameron';
Sample Output:
mov_title ---------------------------------------------------- Titanic Aliens (2 rows)
Code Explanation:
The said query in SQL that selects the dir_id of the director named James Cameron from the director table, and then selects the mov_id of all movies directed by James Cameron from the movie_direction table. Finally, the query selects the title of each of those movies from the movie table.
The subquery is used to find the director ID for James Cameron, and then uses another subquery to find all movies directed by him based on the director ID. Then the outer most query retrieves the titles of all those movies from the movie table.
Relational Algebra Expression:

Relational Algebra Tree:

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Query Visualization for alternate Sample Solution:
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Previous: 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.
Next: Write a query in SQL to find the name of those movies where one or more actors acted in two or more movies.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
SQL: Tips of the Day
What is the best way to paginate results in SQL Server?
SELECT * FROM ( SELECT ROW_NUMBER() OVER ( ORDER BY OrderDate ) AS RowNum, * FROM Orders WHERE OrderDate >= '1980-01-01' ) AS RowConstrainedResult WHERE RowNum >= 1 AND RowNum < 20 ORDER BY RowNum
Database: SQL Server
Ref: https://bit.ly/3MGrNlk
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