Set particular value of column without using update and while inserting values in MySQL

Here, we will see an example wherein we are inserting dates and updating them while using the INSERT query.

Let us first create a table −

mysql> create table DemoTable816(DueDate datetime);
Query OK, 0 rows affected (0.45 sec)

Insert some records in the table using the insert command. Here is the query to add (minutes/hours/days/months/ years) to date when performing INSERT −

mysql> insert into DemoTable816 values(date_add(now(),interval 3 minute));
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable816 values(date_add('2018-01-21 00:00:00',interval 3 Hour));
Query OK, 1 row affected (0.52 sec)
mysql> insert into DemoTable816 values(date_add('2016-11-11 12:40:00',interval 3 Day));
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable816 values(date_add('2018-12-01 11:00:00',interval 3 Month));
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable816 values(date_add('2011-03-21 10:00:00',interval 3 Year));
Query OK, 1 row affected (0.16 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable816;

This will produce the following output −

+---------------------+
| DueDate             |
+---------------------+
| 2019-08-03 13:08:43 |
| 2018-01-21 03:00:00 |
| 2016-11-14 12:40:00 |
| 2019-03-01 11:00:00 |
| 2014-03-21 10:00:00 |
+---------------------+
5 rows in set (0.00 sec)