PROGRAMMERS/SQL
[프로그래머스] [MySQL] [Level 1] [SELECT] 조건에 맞는 회원수 구하기
c0mmedes
2022. 10. 13. 16:55
SELECT COUNT(*) AS USERS
FROM USER_INFO
WHERE (AGE >= 20 AND AGE <= 29) AND YEAR(JOINED) = 2021;