title: delete if two conditions meet in sas
body: <p>I have a rather complex scenario.</p>
  
  <pre><code>ID  cola   colb
  1    10     0
  1    11     1
  2    12     0
  2    13     1
  2    15     2
  3    11     0
  4    12     0
  5    12     0
  5    15     1
  6    10     0
  </code></pre>
  
  <p>Now I want to delete all IDs if cola eq 12 and colb = 0</p>
  
  <p>So I need to delete all cases of id = 2, one case of id =4, all cases of  id =5</p>
  
  <p>So essentially as soon as criteria of cola eq 12 and colb eq 0 is satisfied for any id, all instances of that id need to be deleted.  </p>