DAYOFWEEK
WEEK
QUARTER
その日付が年の何週目かを返します。
WEEK(date[, mode])
下記の値を入力するとサンプルに即時反映されます。
order_date
week_no
total_amount
revenue
orders
-- 주차별 매출 SELECT WEEK(order_date) AS week_no, SUM(total_amount) AS revenue FROM orders GROUP BY week_no;