Get the last days of all the months in MySQL?

To get the last days of all the months, use the LAST_DAY() function from MySQL −

SELECT LAST_DAY(yourColumnName) from yourTableName;

Let us first create a table −

mysql> create table DemoTable
   (
   ShippingDate date
   );
Query OK, 0 rows affected (0.69 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable values('2019-01-12');
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable values('2019-02-01');
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable values('2019-03-04');
Query OK, 1 row affected (0.22 sec)
mysql> insert into DemoTable values('2019-04-21');
Query OK, 1 row affected (0.14 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable;

Output

+--------------+
| ShippingDate |
+--------------+
| 2019-01-12   |
| 2019-02-01   |
| 2019-03-04   |
| 2019-04-21   |
+--------------+
4 rows in set (0.00 sec)

Following is the query to get the last days of all the months in MySQL −

mysql> select LAST_DAY(ShippingDate) from DemoTable;

Output

+------------------------+
| LAST_DAY(ShippingDate) |
+------------------------+
| 2019-01-31             |
| 2019-02-28             |
| 2019-03-31             |
| 2019-04-30             |
+------------------------+
4 rows in set (0.00 sec)