如何在一列中對兩個過去日期之間的日期進行分組 MYSQL

Question

我有這個查詢

SELECT
DATE_ADD(table1.date, INTERVAL -7 DAY) AS date7,
DATE_ADD(table1.date, INTERVAL -14 DAY) AS date14,
DATE_ADD(table1.date, INTERVAL -21 DAY) AS date21,
table1.hotel AS hotel,
table1.customer AS Customer,
table1.date AS Date,
table1.sell AS Sells,
table2.adr AS ADR,
table2.revpar AS RevPAR,
table3.name_hotel AS Hotel_name,
FROM `table1`
INNER JOIN table3 ON table1.hotel=table3.hotel
INNER JOIN table2 
ON table1.hotel=table2.hotel
AND table1.date_occ=table2.date_occ

我想得到一個列“周”，其中日期在日期和日期7之間，然后是“上周”，日期在日期7和日期14之間，然后是“-2周”，日期在日期14和日期21之間，然后是“-3周”。 因為我需要按“周”分組以根據當前日期計算最近 7 天、14 天和 21 天的銷售量

Answer 1

像這樣的東西應該工作。

table1.date BETWEEN DATE_SUB(NOW(), INTERVAL 7 DAY) AND NOW()
table1.date BETWEEN DATE_SUB(NOW(), INTERVAL 14 DAY) AND DATE_SUB(NOW(), INTERVAL 7 DAY)
table1.date BETWEEN DATE_SUB(NOW(), INTERVAL 21 DAY) AND DATE_SUB(NOW(), INTERVAL 14 DAY)

https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-sub