LeetCode（数据库）- 上月播放的儿童适宜电影

Posted 2021-10-26 程序员牧码

题目链接：点击打开链接

题目大意：略。

解题思路：学习下解决方案(2)中的 YEAR 函数和 MONTH 函数。

AC 代码

-- 解决方案(1)
SELECT DISTINCT title
FROM TVProgram tv JOIN Content c ON tv.content_id = c.content_id AND content_type = 'Movies' AND Kids_content = 'Y' AND DATE_FORMAT(program_date, '%Y-%m') = '2020-06'

-- 解决方案(2)
SELECT
	DISTINCT c.title
FROM
	TVProgram AS t
	INNER JOIN Content AS c
		ON t.content_id = c. content_id
WHERE
	YEAR(t.program_date) = 2020 
	AND MONTH(t.program_date) = 6
	AND c.content_type = 'Movies'
	AND c.Kids_content = 'Y';