topic Re: Issue Combining Date and Time Variables into Single Numeric Datetime Variable in SAS Programming

Issue Combining Date and Time Variables into Single Numeric Datetime Variable

Scooter56 — Wed, 27 Jul 2016 14:49:21 GMT

I have numeric date and time variables that I would like to combine into a single numeric datetime variable. The code below works on some of the data, but not all of it (more specifically it won't calculate a datetime for any row where the time variable has a two digit hour - see example output below Proc SQL code). The SAS log gives two notes: "Invalid year value" and "Invalid argument to function INPUT. Missing values may be generated." I have tried changing the datetime informat of the input statement but that doesn't help. Any suggestions on how to fix this using Proc SQL (I'm using SAS 9.2) would be appreciated.

proc sql ;
   select a.injury_date
	 ,a.injury_time
	 ,input(put(a.injury_date,date9.)||put(a.injury_time,time8.),datetime17.) as injury_datetime format = datetime19.
     from injury_data ;

injury_date	injury_time	injury_datetime
14SEP2006	1:40:00	14SEP2006:01:40:00
29JUN2006	21:02:00	.
02AUG2006	16:31:00	.
02OCT2006	9:44:00	02OCT2006:09:44:00

Re: Issue Combining Date and Time Variables into Single Numeric Datetime Variable

RW9 — Wed, 27 Jul 2016 14:58:26 GMT

Use TOD format:

input(cats(put(a.injury_date,date9.),put(a.injury_time,tod8.)),datetime17.) as injury_datetime format = datetime19.

Re: Issue Combining Date and Time Variables into Single Numeric Datetime Variable

Scooter56 — Wed, 27 Jul 2016 15:15:03 GMT

Thanks! I copied your code directly from your post, but it didn't work. The new variable injury_datetime had a missing value for all data rows, and I got the same notes in the SAS log.

Re: Issue Combining Date and Time Variables into Single Numeric Datetime Variable

ballardw — Wed, 27 Jul 2016 15:44:08 GMT

If the variables are actual SAS date and Time valued then you can use

dhms(a.injury_date, 0,0,a.injury_time) as injury_datetime