如何从MySQL中的日期中选择月份和年份？

要在MySQL中选择月份和年份，您可以使用MONTH()和YEAR()方法。让我们首先创建一个表 –

mysql> create table DemoTable
   -> (
   -> DueDate datetime
   -> );
Query OK, 0 rows affected (0.90 sec)

使用insert命令将一些记录插入表中 –

mysql> insert into DemoTable values('2019-01-21');
Query OK, 1 row affected (0.22 sec)

mysql> insert into DemoTable values('2019-06-15');
Query OK, 1 row affected (0.16 sec)

mysql> insert into DemoTable values('2018-12-01');
Query OK, 1 row affected (0.16 sec)

mysql> insert into DemoTable values('2015-04-01');
Query OK, 1 row affected (0.16 sec)

mysql> insert into DemoTable values('2016-08-14');
Query OK, 1 row affected (0.19 sec)

使用select语句从表中显示所有记录 –

mysql− select *from DemoTable;

阅读更多：MySQL 教程

输出

这将会产生以下输出 –

+---------------------+
| DueDate             |
+---------------------+
| 2019-01-21 00:00:00 |
| 2019-06-15 00:00:00 |
| 2018-12-01 00:00:00 |
| 2015-04-01 00:00:00 |
| 2016-08-14 00:00:00 |
+---------------------+
5 rows in set (0.00 sec)

以下是从MySQL中选择月份和年份的查询 –

mysql> select MONTH(DueDate) AS MONTH, YEAR(DueDate) AS YEAR from DemoTable;

输出

这将会产生以下输出 –

+-------+------+
| MONTH | YEAR |
+-------+------+
| 1     | 2019 |
| 6     | 2019 |
| 12    | 2018 |
| 4     | 2015 |
| 8     | 2016 |
+-------+------+
5 rows in set (0.00 sec)