Thank you for your help!
Mem_Detail
Parent Child
A B
B C
C D
if you see this dataset mem_detail, A is parent and B is child and in next observation B is parent and C is child so automatically A is grand parent and C is grand child. I want a dataset like Following:
G.Parent G.child
A C
B D
Typical problem solved by self-join :
data have;
length parent child $1;
input Parent Child;
datalines;
A B
B C
C D
;
proc sql;
create table want as
select
P.Parent as Gparent,
C.child as Gchild
from
have as P inner join
have as C on P.child=C.parent;
select * from want;
quit;
PG
Typical problem solved by self-join :
data have;
length parent child $1;
input Parent Child;
datalines;
A B
B C
C D
;
proc sql;
create table want as
select
P.Parent as Gparent,
C.child as Gchild
from
have as P inner join
have as C on P.child=C.parent;
select * from want;
quit;
PG
Thanks! I will try it! PG
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