data s ;
length emp $ 10 boss $ 10 ;
input emp $ boss ;
cards ;
harish ashok
ashok siva
siva madhavarao
madhavarao ramaya
;
by using above dataset assign super boss like see below
emp boss superboss
harish ashok siva
ashok siva madhavarao
siva madhavarao ramaya
madhavarao ramaya
;
Do like this
data s ;
length emp $ 10 boss $ 10 ;
input emp $ boss ;
cards ;
harish ashok
ashok siva
siva madhavarao
madhavarao ramaya
;
data want;
merge s s(firstobs=2 rename=(boss=superboss) keep=boss);
run;
data s ;
length emp $ 10 boss $ 10 ;
input emp $ boss ;
cards ;
harish ashok
ashok siva
siva madhavarao
madhavarao ramaya
;
proc sql ;
create table want as
select a.* ,b.boss as super_boss
from s as a left join s as b
on a. boss=b.emp;
quit;
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