Hi,
I have a table like this one:
Header 1 | Header 2 | Header 3 |
---|---|---|
999 | 454565 | 5654 |
996 | gdrgr | egdg |
996 | df | dgfd |
999 | df | xd |
555 | dfd | ff |
444 | fef | fe |
333 |
Now, I want to create a table with only the rows in column "Header 1" where there is a distinct record. The resulting table should be something like this:
UniqueNumbers |
---|
555 |
444 |
333 |
I tried to do a Count but I am having problems selecting Where Count=1. Any ideas?
The following code may get you started:
data have;
infile cards truncover;
input (Header_1 Header_2 Header_3) (:$);
cards;
999 454565 5654
996 gdrgr egdg
996 df dgfd
999 df xd
555 dfd ff
444 fef fe
333
;
proc sql;
create table want as
select header_1
from have
group by header_1
having count(*) =1
;
quit;
Haikuo
A data step solution
PROC SORT DATA= have ;
BY header1;
RUN ;
DATA unique_header1 ;
SET have ;
BY header1 ;
IF FIRST.header1 and LAST.header1;
RUN;
proc sql;
select header1 as UniqueNumbers from have group by header1 having count(*)=1;
quit;
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