발생 빈도별로 mysql 행을 정렬하는 방법이 있습니까?

Question

발생 빈도별로 mysql 행을 정렬하는 방법이 있습니까?

Answer 1

SELECT n, count(*) as freq 
FROM your_table 
GROUP BY n 
ORDER BY freq DESC; 

보다 구체적인 예 :

SELECT n, count(*) as freq 
FROM (
    SELECT 1 as n 
    UNION ALL 
    SELECT 2 as n 
    UNION ALL 
    SELECT 3 as n 
    UNION ALL 
    SELECT 3 as n 
    UNION ALL 
    SELECT 3 as n 
    UNION ALL 
    SELECT 2 as n) as your_table 
GROUP BY n 
ORDER BY freq DESC; 

가 반환합니다

n, freq 
3, 3 
2, 2 
1, 1