Do loop

[FreelanceReinh]

It's even easier to get all combinations:

data all;
do x1=1 to 60;
  do x2=x1+1 to 60;
    do x3=x2+1 to 60;
      do x4=x3+1 to 60;
        do x5=x4+1 to 60;
          do x6=x5+1 to 60;
            output;
          end;
        end;
      end;
    end;
  end;
end;
run; /* Log: NOTE: The data set WORK.ALL has 50063860 observations and 6 variables. */

You may add a random number and sort by it (see the earlier post), if you don't like the lexicographic order.

[FreelanceReinh]

It's exactly the number of possible combinations of 6 out of 60 (binomial coefficient).

If you need all, you wouldn't create random combinations, but just all, systematically.

[FreelanceReinh]

Just a mathematical side note: The probability that the NODUPKEY sort step will have to eliminate any duplicates is less than 1 in 10000 (at least in theory). So, the probability that the algorithm fails because of more than 40 duplicates must be minuscule.

[DartRodrigo]

That's the number of possibilities of a Raffle game. 

[Reeza]

Ok....so do you have a question?

[DartRodrigo]

No Reeza,

Thanks again guys, amazing answers.

Thanks