sas - Using Date as Constant in expressions -

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i'm having trouble calling date within if statement. date is, example, "2001-08-05". trying subset data based on date. code:

if id = "yes" , date > 2001-08-05 delete;

but doesn't i'm asking. don't error, doesn't perform ask. tried "2001-08-05"d. produced error. there way read format?

the proper format date constant in sas 'ddmmmyyyy'd, so:

if id = 'yes' , date > '05aug2001'd

you can use either single or double quotes delimit constant. month name in constant case insensitive.

on side-note, if need date-time constant in sas, format 'ddmmmyyyy:hh:mm:ss'dt. notice suffix becomes dt rather d , there semi-colon between date , time.


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