Question

in my my mysql table, I have a column with date format: yyyy-mm-dd

I make this request to select the maximum and minimum dates for the last 2 months.

SELECT MIN(date) AS date1, MAX(date) AS date2 FROM mytable
    WHERE (MONTH(date) = (SELECT Month(MAX(date))-1 FROM mytable )
    OR MONTH(date) = (SELECT Month(MAX(date))-2 FROM mytable ))
    AND YEAR(date) = (SELECT YEAR(MAX(date))
    FROM mytable)

But when I want to select dates for the last 3 months, I found that I can’t make the month Jaunuar-1
and also the request :

OR MONTH(date) = (SELECT Month(MAX(date))-3 FROM mytable )

don’t work !

My question is: How can I select the last 3 Months (or the maximal and minimum dates in the last 3 or 4 or 5 months).

Thanks a lot.

Answer 1

SELECT MIN(`date`) AS date1,
       MAX(`date`) AS date2 
  FROM mytable
 WHERE `date` BETWEEN now() - interval 3 month 
                  AND now();