My SQL 날짜 함수
1. dayname(컬럼 or "날짜값")을 넣으면 날짜가 요일형식으로 나온다. SELECT DATE(event_timestamp_kst) AS dt, DAYNAME(event_timestamp_kst) AS dayname, COUNT(DISTINCT user_pseudo_id, ga_session_id) AS sessions FROM ga WHERE event_timestamp_kst BETWEEN "2022-01-22 00:00:00" AND "2022-01-28 23:59:59" GROUP BY dt, dayname ORDER BY dt 2. DATE_FORMAT(칼럼 or 날짜, "형식") 날짜를 원하는 형식으로 바꿔준다. ex) DATE_FORMAT(last_order_date, '%Y-%m-0..
SQL/MySQL 이론
2022. 9. 11. 12:03