title: how to do create a field in SAS that consider more fields at the same time
body: <p>I have a table in <code>SAS</code> with <code>n</code> fields called <code>check1, check2, ... , checkN</code>. Every of this fields can be "OK" or "KO". I want to generate a field that is "OK" if every of the check is "OK" and it is "KO" if even one of the checks is "KO". How can I do?</p>
  
  <p>Thanks in advance</p>