如何从MySQL的时间戳中选择日期？

要使用DATE()从MySQL的时间戳中选择日期。

首先让我们创建一个表 –

mysql> create table DemoTable697(
   Id varchar(100),
   Title varchar(100),
   BatchTime timestamp
);
Query OK, 0 rows affected (0.78 sec)

使用insert命令在表中插入一些记录 –

mysql> insert into DemoTable697 values('10','Java','2019-01-21 10:34:56');
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable697 values('11','Spring','2019-03-11 11:14:16');
Query OK, 1 row affected (0.21 sec)
mysql> insert into DemoTable697 values('12','Hibernate','2019-07-21 12:04:00');
Query OK, 1 row affected (0.18 sec)

使用select语句显示表中的所有记录 –

mysql> select *from DemoTable697;

这将产生以下输出 –

+------+-----------+---------------------+
| Id   | Title     | BatchTime           |
+------+-----------+---------------------+
| 10   | Java      | 2019-01-21 10:34:56 |
| 11   | Spring    | 2019-03-11 11:14:16 |
| 12   | Hibernate | 2019-07-21 12:04:00 |
+------+-----------+---------------------+
3 rows in set (0.00 sec)

以下是在MySQL中从时间戳中选择日期的查询 –

mysql> select Title,DATE(BatchTime) AS OnlyDate from DemoTable697 where Id='10';

这将产生以下输出 –

+-------+------------+
| Title | OnlyDate   |
+-------+------------+
| Java  | 2019-01-21 |
+-------+------------+
1 row in set (0.00 sec)

阅读更多：MySQL 教程