如何从SQLite中的日期时间结果列中检索日期部分?

问题描述:

我有一个datetime类型的列,我想从中检索只有日期。是否还有这样做?

I have a column of datetime type from which I would like to retrieve only the date. Is there anyway to do this?

以前是一个时代值,我将它转换为datetime。

Previously it was an epoch value where I convert it to datetime .

这是一个示例结果:

smbd|ip address|1082|ip address|"2011-04-26 18:40:34"

我尝试了以下命令,但它产生负/零结果

I have tried the following commands, but it yields negative / zero results

SELECT DATE(datetime) from attacked_total;
SELECT STRFTIME('%Y-%m-%d', datetime) FROM attacked_total;
SELECT DATETIME('%Y-%m-%d', datetime) FROM attacked_total;
SELECT DATE('%Y-%m-%d', datetime) FROM attacked_total;


您可以使用 DATE function。

You can use the DATE function.

示例

> select date('2011-04-26 18:40:34')
> 2011-04-26

您只能使用strftime获取日期,

You can get only the day with strftime,

> select strftime('%d', '2011-04-26 18:40:34')
> 26