topic Re: where date(YYMMDDN8.) before 20180430 in SAS Programming

where date(YYMMDDN8.) before 20180430

x2PSx — Fri, 25 May 2018 20:04:49 GMT

Hello,

quick question, I want to count the number of observations in a table where the date is before another date. The format of my date column is YYMMDDN8. For example, if I want to count the number of observations that are before 20180430 I would have something like this:

proc sql;
select count(*)
from my.table
where datepart(datecolumn) < 20180430 ;
quit;

Thanks for your help

Re: where date(YYMMDDN8.) before 20180430

DanielLangley — Fri, 25 May 2018 20:09:46 GMT

You could change the date value to a standard SAS date value. table values are unchanged just makes the where condition easier.

proc sql;
select count(*)
from my.table
where datepart(datecolumn) < '30APR2018'd ;
quit;

Re: where date(YYMMDDN8.) before 20180430

SuryaKiran — Fri, 25 May 2018 20:12:20 GMT

proc sql;
select count(*)
from my.table
where datecolumn< '30APR2018'd ;
quit;

Date values in SAS are stored as numericvalue that represents the number of days from January 1, 1960. DATEPART() is used to extract date from Datetime values. Since you have only date values you don't need datepart()