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MySQL Datetime添加天数？

2024-05-15 04:50:03 415

让我们首先创建一个表-

mysql> create table DemoTable1871
     (
     ArrivalDate datetime
     );

使用插入命令在表中插入一些记录-

mysql> insert into DemoTable1871 values('2019-12-19 7:45:00');
mysql> insert into DemoTable1871 values('2018-11-10 12:00:00');
mysql> insert into DemoTable1871 values('2019-01-31');

使用select语句显示表中的所有记录-

mysql> select * from DemoTable1871;

这将产生以下输出-

+---------------------+
| ArrivalDate         |
+---------------------+
| 2019-12-19 07:45:00 |
| 2018-11-10 12:00:00 |
| 2019-01-31 00:00:00 |
+---------------------+
3 rows in set (0.00 sec)

这是添加天数的查询-

mysql> update DemoTable1871 set ArrivalDate=date_add(ArrivalDate, interval 6 day);
Rows matched: 3  Changed: 3 Warnings: 0

让我们再次检查表记录-

mysql> select * from DemoTable1871;

这将产生以下输出-

+---------------------+
| ArrivalDate         |
+---------------------+
| 2019-12-25 07:45:00 |
| 2018-11-16 12:00:00 |
| 2019-02-06 00:00:00 |
+---------------------+
3 rows in set (0.00 sec)

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MySQL Datetime添加天数？

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