MySQL 如何在mysql数据库中存储日期?
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how store date in mysql database?
提问by Simon
i have date in dd/mm/yyyy
format. how can i store it in databse, if i fant to do some operations on them after?
我有dd/mm/yyyy
格式的日期。如果我想在之后对它们进行一些操作,我如何将它存储在数据库中?
for example i must find out the rows, where date > something
例如,我必须找出行,其中 date > something
what type i must set to date
field
?
我必须设置为什么类型date
field
?
thanks
谢谢
回答by Mark Byers
To store dates or times in MySQL use date
, datetime
or timestamp
. I'd recommend the first two for most purposes.
要在 MySQL 中存储日期或时间,请使用date
,datetime
或timestamp
。大多数情况下,我建议使用前两个。
To tell MySQL how to parse your date format use the STR_TO_DATEfunction. Here's an example:
要告诉 MySQL 如何解析您的日期格式,请使用STR_TO_DATE函数。下面是一个例子:
CREATE TABLE table1 (`Date` Date);
INSERT INTO table1 (`Date`) VALUES (STR_TO_DATE('01/05/2010', '%m/%d/%Y'));
SELECT * FROM table1;
Date
2010-01-05
To format the results back into the original form look at the DATE_FORMATfunction. Note that you only need to format it if you want to display it as a string using something other than the default format.
要将结果格式化回原始形式,请查看DATE_FORMAT函数。请注意,如果您想使用默认格式以外的其他内容将其显示为字符串,则只需对其进行格式化。
回答by greenimpala
or just date
if you don't need time information
或者只是date
如果您不需要时间信息
回答by botmsh
Use date
if you only care about the date and not about the exact time.
使用date
,如果你只关心日期,不是确切的时间。
回答by Bart
use datetime or time stamp and using format functionL
使用日期时间或时间戳并使用格式函数L
http://davidwalsh.name/format-date-mysql-date_format
http://davidwalsh.name/format-date-mysql-date_format
http://www.electrictoolbox.com/article/mysql/format-date-time-mysql/
http://www.electrictoolbox.com/article/mysql/format-date-time-mysql/