如何获取 mysql 数据库中两个日期之间的状态？

Question

I have a query like this to get status without adding fields.

SELECT * ,
      IF(DATEDIFF(STR_TO_DATE(end_date, "%Y-%m-%d"), CURDATE())<=0,"End","Running") status 
FROM agreements

the query is running but I want to add status if the end date is less than 3 days then the status will show "will be ended"

so there will be 3 statuses in the query, END, RUNNING, Will be END

Answer 1

You can use CASE..WHEN statements; also your STR_TO_DATE(end, '%Y-%m-%d') usage is unnecessary because DATEDIFF() function considers date part only for the calculation:

SELECT * ,
       CASE WHEN DATEDIFF(end_date, CURDATE()) <= 0 THEN 'End' 
            WHEN DATEDIFF(end_date, CURDATE()) < 3 THEN 'Will Be End' 
            ELSE 'Running'
       END status
FROM agreements