ADDDATE: Increment date

ADDDATE(expr1, expr2):

Used to increment the date in expr1.

expr1: It should be of the format YYYY-MM-DD.

Expr2: It should be of the format ‘INTERVAL number DAY/MONTH/YEAR’.

mysql> SELECT ADDDATE('2016-06-21', INTERVAL 10 DAY);
+----------------------------------------+
| ADDDATE('2016-06-21', INTERVAL 10 DAY) |
+----------------------------------------+
| 2016-07-01                             |
+----------------------------------------+
1 row in set (0.01 sec)

Add 10 months to the date 2016-06-21.
mysql> SELECT ADDDATE('2016-06-21', INTERVAL 10 MONTH);
+------------------------------------------+
| ADDDATE('2016-06-21', INTERVAL 10 MONTH) |
+------------------------------------------+
| 2017-04-21                               |
+------------------------------------------+
1 row in set (0.00 sec)

Add 10 years to the date 2016-06-21.
mysql> SELECT ADDDATE('2016-06-21', INTERVAL 10 YEAR);
+-----------------------------------------+
| ADDDATE('2016-06-21', INTERVAL 10 YEAR) |
+-----------------------------------------+
| 2026-06-21                              |
+-----------------------------------------+
1 row in set (0.00 sec)

You can also provide negative numbers to reduce/decrement the date.

mysql> SELECT ADDDATE('2016-06-21', INTERVAL -10 DAY);
+-----------------------------------------+
| ADDDATE('2016-06-21', INTERVAL -10 DAY) |
+-----------------------------------------+
| 2016-06-11                              |
+-----------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT ADDDATE('2016-06-21', INTERVAL -10 MONTH);
+-------------------------------------------+
| ADDDATE('2016-06-21', INTERVAL -10 MONTH) |
+-------------------------------------------+
| 2015-08-21                                |
+-------------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT ADDDATE('2016-06-21', INTERVAL -10 YEAR);
+------------------------------------------+
| ADDDATE('2016-06-21', INTERVAL -10 YEAR) |
+------------------------------------------+
| 2006-06-21                               |
+------------------------------------------+
1 row in set (0.00 sec)

 

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