本文介绍了SAS信息datetime毫秒的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
SAS可以存储和使用包含小于1/10秒的数据时间吗?例如:
data _null_;
input @ 1 from_dt:datetime22;
put from_dt =;
卡;
24Sep2009:11:21:19.856
;
运行;
解决方案
datetime变量是一个数字变量,就像其他任何一个数字变量。我们只是从01jan1960T00:00:00了解其值。希望这有帮助。
data _null_;
/ *日期时间,1表示自午夜以来的1秒jan 1960年* /
dt = 1;
put dt:datetime;
/ *您可以使用datetime格式显示百分之一秒* /
dt = 0.01;
put dt:datetime19.2;
/ *但它只是一个双重类型的数字。你可以用任何其他数字
变量* /
dt = 0.01来做
你想要的变量。
putIt isdt:wordf15。 午后二点。
运行;
/ * on log
01JAN60:00:00:01
01JAN60:00:00:00.01
午夜后为零和01/100秒。
* /
Can SAS store and use datetimes that contain fractions of less than 1/10th of a second?
eg:
data _null_;
input @1 from_dt:datetime22.;
put from_dt= ;
cards;
24Sep2009:11:21:19.856
;
run;
解决方案
A datetime variable is a numeric variable just like any other numeric variables. We just understand its value as the seconds since 01jan1960T00:00:00. Hope this helps.
data _null_;
/* for date time, 1 means 1 sec since midnight jan 1st 1960 */
dt = 1;
put dt :datetime.;
/* you can show the hundredth of second using datetime format */
dt = 0.01;
put dt :datetime19.2;
/* but it is just a double type number. you can do
what you want with the variable as with any other numeric
variables */
dt = 0.01;
put "It was " dt :wordf15. "second after midnight.";
run;
/* on log
01JAN60:00:00:01
01JAN60:00:00:00.01
it was zero and 01/100 second after midnight.
*/
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