Friendly Movies Streamed Last Month Problem
Description
LeetCode Problem 1495.
Table: TVProgram
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+---------------+---------+
| Column Name | Type |
+---------------+---------+
| program_date | date |
| content_id | int |
| channel | varchar |
+---------------+---------+
(program_date, content_id) is the primary key for this table.
This table contains information of the programs on the TV.
content_id is the id of the program in some channel on the TV.
Table: Content
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+------------------+---------+
| Column Name | Type |
+------------------+---------+
| content_id | varchar |
| title | varchar |
| Kids_content | enum |
| content_type | varchar |
+------------------+---------+
content_id is the primary key for this table.
Kids_content is an enum that takes one of the values ('Y', 'N') where:
'Y' means is content for kids otherwise 'N' is not content for kids.
content_type is the category of the content as movies, series, etc.
Write an SQL query to report the distinct titles of the kid-friendly movies streamed in June 2020.
Return the result table in any order.
The query result format is in the following example.
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TVProgram table:
+--------------------+--------------+-------------+
| program_date | content_id | channel |
+--------------------+--------------+-------------+
| 2020-06-10 08:00 | 1 | LC-Channel |
| 2020-05-11 12:00 | 2 | LC-Channel |
| 2020-05-12 12:00 | 3 | LC-Channel |
| 2020-05-13 14:00 | 4 | Disney Ch |
| 2020-06-18 14:00 | 4 | Disney Ch |
| 2020-07-15 16:00 | 5 | Disney Ch |
+--------------------+--------------+-------------+
Content table:
+------------+----------------+---------------+---------------+
| content_id | title | Kids_content | content_type |
+------------+----------------+---------------+---------------+
| 1 | Leetcode Movie | N | Movies |
| 2 | Alg. for Kids | Y | Series |
| 3 | Database Sols | N | Series |
| 4 | Aladdin | Y | Movies |
| 5 | Cinderella | Y | Movies |
+------------+----------------+---------------+---------------+
Result table:
+--------------+
| title |
+--------------+
| Aladdin |
+--------------+
"Leetcode Movie" is not a content for kids.
"Alg. for Kids" is not a movie.
"Database Sols" is not a movie
"Alladin" is a movie, content for kids and was streamed in June 2020.
"Cinderella" was not streamed in June 2020.
MySQL Solution
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select distinct title
from Content
join TVProgram using(content_id)
where kids_content = 'Y'
and content_type = 'Movies'
and (month(program_date), year(program_date)) = (6, 2020)
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