Get the first and last date of next month in MySQL

Question

How can I get the first and last day of next month to be used in the where clause?

Answer 1

Shorter query:

SELECT
ADDDATE(LAST_DAY(NOW()), 1) AS firstOfNextMonth,
LAST_DAY(DATE_ADD(NOW(), INTERVAL 1 MONTH)) AS lastOfNextMonth

Answer 2

As @DanielVassallo explained it, retrieving the last day of next month is easy:

SELECT LAST_DAY(DATE_ADD(CURRENT_DATE(), INTERVAL 1 MONTH));

To retrieve the first day, you could first define a custom FIRST_DAY function (unfortunately MySQL does not provide any):

DELIMITER ;;
CREATE FUNCTION FIRST_DAY(day DATE)
RETURNS DATE DETERMINISTIC
BEGIN
  RETURN ADDDATE(LAST_DAY(SUBDATE(day, INTERVAL 1 MONTH)), 1);
END;;
DELIMITER ;

And then you could do:

SELECT FIRST_DAY(DATE_ADD(CURRENT_DATE(), INTERVAL 1 MONTH));

Answer 3

SELECT DATE_ADD(LAST_DAY('2020-12-14'),INTERVAL 1 DAY) AS 'FIRST DAY OF NEXT MONTH';
        +----------------------------+
        | FIRST DAY OF NEXT MONTH |
        +----------------------------+
        | 2021-01-01                 |
        +----------------------------+
        1 row in set (1.06 sec)
        
SELECT DATE_ADD(LAST_DAY(NOW()),INTERVAL 1 MONTH) AS 'LAST DAY OF NEXT MONTH';
        +------------------------+
        | LAST DAY OF NEXT MONTH |
        +------------------------+
        | 2020-09-30             |
        +------------------------+
        1 row in set (0.51 sec)

Answer 4

In postgresql you have perfect date truncation functions.

For MySQL, I found a discussion here which might give some ideas.

Answer 5

Use:

SELECT

DATE_SUB(
    LAST_DAY(
        DATE_ADD(NOW(), INTERVAL 1 MONTH)
    ), 
    INTERVAL DAY(
        LAST_DAY(
            DATE_ADD(NOW(), INTERVAL 1 MONTH)
        )
    )-1 DAY
) AS firstOfNextMonth,

LAST_DAY(
    DATE_ADD(NOW(), INTERVAL 1 MONTH)
)AS lastOfNextMonth

Answer 6

For the last day of next month, you can use the LAST_DAY() function:

SELECT LAST_DAY(DATE_ADD(CURDATE(), INTERVAL 1 MONTH));
+-------------------------------------------------+
| LAST_DAY(DATE_ADD(CURDATE(), INTERVAL 1 MONTH)) |
+-------------------------------------------------+
| 2010-07-31                                      |
+-------------------------------------------------+
1 row in set (0.00 sec)

Some tested edge cases:

SELECT LAST_DAY(DATE_ADD('2010-01-31', INTERVAL 1 MONTH));
+----------------------------------------------------+
| LAST_DAY(DATE_ADD('2010-01-31', INTERVAL 1 MONTH)) |
+----------------------------------------------------+
| 2010-02-28                                         |
+----------------------------------------------------+
1 row in set (0.00 sec)

SELECT LAST_DAY(DATE_ADD('2010-02-28', INTERVAL 1 MONTH));
+----------------------------------------------------+
| LAST_DAY(DATE_ADD('2010-02-28', INTERVAL 1 MONTH)) |
+----------------------------------------------------+
| 2010-03-31                                         |
+----------------------------------------------------+
1 row in set (0.00 sec)

SELECT LAST_DAY(DATE_ADD('2010-08-31', INTERVAL 1 MONTH));
+----------------------------------------------------+
| LAST_DAY(DATE_ADD('2010-08-31', INTERVAL 1 MONTH)) |
+----------------------------------------------------+
| 2010-09-30                                         |
+----------------------------------------------------+
1 row in set (0.00 sec)

There is also a tricky use of the DATE_FORMAT() function to get the first day of a month. You can use it as follows:

SELECT DATE_FORMAT(DATE_ADD(CURDATE(), INTERVAL 1 MONTH), '%Y-%m-01');
+---------------------------------------------------------------+
| DATE_FORMAT(DATE_ADD(CURDATE(), INTERVAL 1 MONTH),'%Y-%m-01') |
+---------------------------------------------------------------+
| 2010-07-01                                                    |
+---------------------------------------------------------------+
1 row in set (0.00 sec)

---

Therefore:

SELECT   DATE_FORMAT(DATE_ADD(CURDATE(), INTERVAL 1 MONTH), '%Y-%m-01') AS
            FirstDayOfNextMonth,
         LAST_DAY(DATE_ADD(CURDATE(), INTERVAL 1 MONTH)) AS
            LastDayOfNextMonth;

+---------------------+--------------------+
| FirstDayOfNextMonth | LastDayOfNextMonth |
+---------------------+--------------------+
| 2010-07-01          | 2010-07-31         |
+---------------------+--------------------+
1 row in set (0.00 sec)