OK. I forgot you have hundreds of columns. Try this:
data have;
input col coll colll;
datalines;
1 3 5
2 5 2
10 3 1
8 0 -10
;
data _null_;
set sashelp.vcolumn(where=(libname='WORK' and memname='HAVE')) end=last;
if _n_=1 then call execute('proc sql;create table want as select ');
call execute(cat('sum(',name,'>=5) as ',name));
if last then call execute('from have;quit;');
else call execute(',');
run;