Oracle 日期格式

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时间:2020-09-18 23:44:19  来源:igfitidea点击:

Oracle date formatting

c#oracle

提问by rik

in my c# programme i am requesting data from an oracle database and one field is the date abd time in this format - 12/09/2008 15:11:17, is there anyway i can just return the date?

在我的 C# 程序中,我从 oracle 数据库请求数据,一个字段是这种格式的日期和时间 -12/09/2008 15:11:17无论如何我可以只返回日期吗?

Is there also a way of ensuring its in british format, by modifying the sql to be dd/mm/yyyy

是否还有一种方法可以通过将 sql 修改为 dd/mm/yyyy 来确保其采用英国格式

thanks

谢谢

回答by FIre Panda

You could get the date part of the DateTimeusing C#, You could do

您可以获得DateTime使用 C#的日期部分,您可以这样做

string date = MyDateTime.ToString("dd/MM/yyyy");///let MyDateTime be your DateTime variable

If you want to do in Oracle, you can use to_charfor example,

如果你想在 Oracle 中做,你可以使用to_char例如,

select to_char(sysdate, 'dd/MM/yyyy') From dual;

回答by Tony Andrews

The Oracle trunc() function removes the time part:

Oracle trunc() 函数去掉了时间部分:

select trunc(datecol) from mytable;

回答by Kamal

In your sql query to oracle you can

在您对 oracle 的 sql 查询中,您可以

to_date('12/09/2008 15:11:17', 'dd/MM/yyyy')

where you replace the date with your field in the oracle db.

您在 oracle 数据库中用您的字段替换日期。

Alternatively, you can handle it on the C# side with formatting

或者,您可以使用格式化在 C# 端处理它

CultureInfo ukCulture = new CultureInfo("en-GB");

//this assuming you do not have a datetime type
DateTime myDateTime = DateTime.Parse("12/09/2008 15:11:17", ukCulture.DateTimeFormat);

string result = myDateTime.ToString(ukCulture.DateTimeFormat.ShortDatePattern));