更新 MySQL 日期并增加一年？

UPDATE yourTableName SET
yourDateColumnName=DATE_ADD(yourDateColumnName,interval 1 year);

mysql> create table UpdateDate
   -> (
   -> Id int,
   -> DueDate datetime
   -> );
Query OK, 0 rows affected (0.76 sec)

mysql> insert into UpdateDate values(1001,'2012-5-21');
Query OK, 1 row affected (0.17 sec)

mysql> insert into UpdateDate values(1002,'2013-8-2');
Query OK, 1 row affected (0.17 sec)

mysql> insert into UpdateDate values(1003,'2014-2-27');
Query OK, 1 row affected (0.10 sec)

mysql> insert into UpdateDate values(1004,'2016-11-1');
Query OK, 1 row affected (0.18 sec)

mysql> insert into UpdateDate values(1005,'2017-12-24');
Query OK, 1 row affected (0.12 sec)

+------+---------------------+
| Id   | DueDate             |
+------+---------------------+
| 1001 | 2012-05-21 00:00:00 |
| 1002 | 2013-08-02 00:00:00 |
| 1003 | 2014-02-27 00:00:00 |
| 1004 | 2016-11-01 00:00:00 |
| 1005 | 2017-12-24 00:00:00 |
+------+---------------------+
5 rows in set (0.00 sec)

mysql> update UpdateDate set DueDate=date_add(DueDate,interval 1 year);
Query OK, 5 rows affected (0.15 sec)
Rows matched: 5 Changed: 5 Warnings: 0

+------+---------------------+
| Id   | DueDate             |
+------+---------------------+
| 1001 | 2013-05-21 00:00:00 |
| 1002 | 2014-08-02 00:00:00 |
| 1003 | 2015-02-27 00:00:00 |
| 1004 | 2017-11-01 00:00:00 |
| 1005 | 2018-12-24 00:00:00 |
+------+---------------------+
5 rows in set (0.00 sec)