题解 | #今天的刷题量(一)#

今天的刷题量(一)

https://www.nowcoder.com/practice/e18f56796ae94c3d885e61c8d57a950e

SELECT s.name,cnt
FROM (
	SELECT subject_id,COUNT(*) cnt
	FROM submission
	WHERE create_time = CURRENT_DATE
	GROUP BY subject_id
) t1 JOIN `subject` s ON t1.subject_id = s.id
ORDER BY cnt DESC,subject_id

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