Concatenation in SAS with name - sas

Question

Hi i have 25 variables like Name1, name2, name3.....name 25. Few names are having 0 data which means few name are have the value 0.
I want to concate all the name from 1 to 25 and drop those name which has 0 values.
i am trying
data test;
set need;
new_name = catx (',',Name1,Name2, Name3, Name4, Name5, Name6, Name7, Name8, Name9, Name10, Name11, Name12, Name13, Name14, Name15, Name16, Name17, Name18, Name19, Name20, Name21, Name22, Name23, Name24, Name25);
); run;
but i am getting name like 0,0,0,0,0,Amit,0,0,0,Dave,0,0,0,Pam,0,0,0,0,Deepka,0,0,0,0,0,0. However, i only need names not 0 value in the outcome. Variable data type is charracter
Any help would be much appreciated

Answer 1

This should work:
data have;
input (Name1-Name25) (:$20.);
datalines;
0 0 0 0 0 Amit 0 0 0 Dave 0 0 0 Pam 0 0 0 0 Deepka 0 0 0 0 0 0
Tom Steve 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Richard 0 0 0 0
;
run;
First I changed 0 with nulls, so catx doesn't concatenate those zeros.
Data have;
set have;
array Name[25];
do i=1 to 25;
if Name[i]='0' then do;
Name[i]='';
end;
end;
run;
Your code then works just fine.
proc sql;
create table want as
select catx (',',Name1,Name2, Name3, Name4, Name5, Name6, Name7, Name8, Name9, Name10, Name11, Name12, Name13, Name14, Name15, Name16, Name17, Name18, Name19, Name20, Name21, Name22, Name23, Name24, Name25) as new_name
from have
;
quit;
This is naturally not the only way to do this. Best way would probably be to fix the issue at the source - to put proper null values into the table instead of 0s.