sql을 복습 중입니다.
SELECT * FROM user
WHERE gender != 'male';
SELECT * FROM user
WHERE gender <> 'male';
SELECT * FROM user
WHERE age IN (20, 30);
SELECT * FROM user
WHERE email LIKE 'p_____@%';
SELECT * FROM user
WHERE YEAR(sign_up_day) = '2020';
SELECT * FROM user
WHERE MONTH(birthday) IN (1, 2, 3);
SELECT * FROM user
WHERE DAYOFMONTH(birthday) BETWEEN 1 AND 15;