data have;
infile cards dsd;
informat id_key 1. process $1. process_date mmddyy10.;
format id_key 1. process $1. process_date mmddyy10.;
input ID_key x process$ process_date;
cards;
1,1,x,01-01-15
1,2,y,02-01-15
2,1,x,03-01-15
;run;
proc transpose data=have out=tran_have(drop=_name_) suffix=_Process_Date;
by id_key ;
id process;
var process_date ;
run;
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