下面是一个简单的类图,展示了如何将长整型的毫秒值转换为时间的过程: ConvertLongToTimeFROM_UNIXTIMEtest_table 4. 饼状图 下面是一个简单的饼状图,展示了毫秒值转换为时间的比例情况: 75%25%Milliseconds to Time ConversionConvertedNot Converted 在本文中,我们介绍了如何将MySQL中的long类型的毫秒值转换为时间,...
3.与时区无关(It has nothing to deal with the TIMEZONE and Conversion.) timestamp具有强制将长度上提到偶数的能力,同时,存储的还是14位数据,只不过读取的时候,隐藏了部分,如果将长度设置成14位,则可以看到隐藏的部分 另外timestamp默认非null,但可以手动设置和赋值 更多:http://www.jb51.net/article/51794....
并且：UNIX时间戳转换为日期用函数： FROM_UNIXTIME() select FROM_UNIXTIME(1156219870); 日...
Note: If you useUNIX_TIMESTAMP()andFROM_UNIXTIME()to convert betweenTIMESTAMPvalues and Unix timestamp values, the conversion is lossy because the mapping is not one-to-one in both directions. For details, see the description of theUNIX_TIMESTAMP()function. 注意:如果使用UNIX_TIMESTAMP()和F...
MySQL中的时间类型有三大类:日期(Date)、时间(Time)和年(Year)。 1.1 基本信息 下面的图表展示了MySQL几种类型的基本信息: 关于日期与时间类型,需要关注: 支持时间的类型有:TIME、DATETIME和TIMESTAMP; 支持日期的类型有:DATE、DATETIME和TIMESTAMP; 支持小数秒的类型有:TIME、DATETIME和TIMESTAMP; ...
UNIX_TIMESTAMP() Return a Unix timestamp UTC_DATE() Return the current UTC date UTC_TIME() Return the current UTC time UTC_TIMESTAMP() Return the current UTC date and time WEEK() Return the week number WEEKDAY() Return the weekday index WEEKOFYEAR() Return the calendar week...
If you use UNIX_TIMESTAMP() and FROM_UNIXTIME() to convert between values in a non-UTC time zone and Unix timestamp values, the conversion is lossy because the mapping is not one-to-one in both directions. For details, see the description of the UNIX_TIMESTAMP() function. GET...
3、时区转化 ,存储时对当前的时区进行转换,检索时再转换回当前的时区。 datetime 1、8个字节储存(8 bytes storage) 2、实际格式储存(Just stores what you have stored and retrieves thesamething which you have stored.) 3、与时区无关(It has nothing to deal with the TIMEZONEandConversion.)...
Description:The conversion from unixtime to internal format and back to unixtime eats up that single magic hour which is doubled during the switch from summertime back to the normal time. I expect, that for every X the expression UNIX_TIMESTAMP(FROM_UNIXTIME(X)) == X is true. But for...
(1268006400) , FROM_UNIXTIME(1268006424); and got the following results 2010-03-08 01:59:36, 2010-03-08 02:00:00 If I work it out manually, those values are wrong. They are out by 24 seconds. I confirmed this on another sitehttp://www.onlineconversion.com/unix_time.htmSuggested ...