mysql 日期处理

mysql> select curdate();
+------------+
| curdate()  |
+------------+
| -- |
+------------+
 row in set (0.00 sec)

mysql> select date(now());
+-------------+
| date(now()) |
+-------------+
| --  |
+-------------+
 row in set (0.00 sec)

mysql> select year(curdate());
+-----------------+
| year(curdate()) |
+-----------------+
|             |
+-----------------+
 row in set (0.00 sec)

mysql> select month(curdate());
+------------------+
| month(curdate()) |
+------------------+
|                 |
+------------------+
 row in set (0.00 sec)

mysql> select day(curdate());
+----------------+
| day(curdate()) |
+----------------+
|               |
+----------------+
 row in set (0.00 sec)

参考：

https://www.w3school.com.cn/sql/sql_dates.asp