3월에 태어난 여성 회원 목록 출력하기

https://school.programmers.co.kr/learn/courses/30/lessons/131120

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- 나의 풀이

 

✅ 날짜 변환 DATE_OF_BIRTH : 1993-03-16

mySQL : DATE_FORMAT(DATE_OF_BIRTH, '%Y-%m-%d')

Oracle : TO_DATE(DATE_OF_BIRTH, 'yyyy-mm-dd')

 

- 나의 코드

SELECT MEMBER_ID, MEMBER_NAME, GENDER, DATE_FORMAT(DATE_OF_BIRTH, '%Y-%m-%d') as DATE_OF_BIRTH
from MEMBER_PROFILE
where DATE_OF_BIRTH like '%-03-%'
and GENDER = 'W'
and TLNO is not NULL
order by MEMBER_ID;

 

+

 

✅ 날짜 관련 함수 MONTH() : 해당 월 알려줌

 

- 다른 풀이 방식

SELECT MEMBER_ID, MEMBER_NAME, GENDER, DATE_FORMAT(DATE_OF_BIRTH, '%Y-%m-%d') AS DATE_OF_BIRTH
FROM MEMBER_PROFILE
WHERE MONTH(DATE_OF_BIRTH) = 3
AND GENDER = 'W'
AND TLNO IS NOT NULL
ORDER BY MEMBER_ID;