Keep and Rename Data Set Options

I always forget which gets applied first when using the keep= and rename= data set options on the same data set. So I thought I'd just put it here so I will remember:

Keep happens before the rename.

Keep happens before the rename.

Keep happens before the rename.

There. Now I won't forget.

A little test code to prove it:

data test;
  length x y z $5;
run;

data test;
  set test(keep=x y z rename=(x=x2));
run;