Please try to enter dates in the input form of the SAS Enterprise Guide version 7.1, but in any case the result always comes out in numerical form, here is an example of the code:
data work.family;
infile datalines;
input relation $ first_name $ birthdate: mmddyy10.;
cards;
son Frank 01/31/89
daughter June 12-25-87
brother Samuel 01/17/51
run;
In the bithdate variable, the addition or removal of the colon, or change in the size of the format always results in the date in numerical form and does not date:
relation first_name birthdate
son Frank 10623
daughter June 10220
brother Samuel -3271