[프로그래머스_SQL_고득점kit][MySQL] SELECT Lv.1 - 131535. 조건에 맞는 회원수 구하기

 

-- 코드를 입력하세요
SELECT COUNT(*) AS USERS
FROM USER_INFO
WHERE DATE(JOINED) BETWEEN '2021-01-01' AND '2021-12-31'
AND (AGE >= 20 AND AGE <= 29)