Storing Macro Variable Values to a Dataset

This tutorial explains how to store macro variable values to a data set.
%macro storemacroval;
proc sql noprint;
select name into: nvar separated by " "
from dictionary.columns
where LIBNAME = "SASHELP"
and MEMNAME = "CLASS"
and type = "num";
quit;
%let cntvar = %sysfunc(countw(&nvar));
data output;
length List $ 32;
%do i=1 %TO &cntvar.;
%let varN =%scan(&nvar,&i);
List = "&varN";
output;
%end;
run;
%mend;
%storemacroval;

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