title: I need to select IDs by using only INTERSECT / EXCEPT
body: <p>I have a table with some data:</p>
  
  <pre><code> id     month     price
   100    May       2000
   100    June      3000
   100    July      2500
   192    March     2000
   192    May       2000
   101    May       2000
   101    June      3000
   100    August    3100
  </code></pre>
  
  <p>I need to get the ids, by using only INTERCEPT.</p>
  
  <p>1) If the "id" has month "May" and price "2000", and the same "id" also has month "June" and price "3000".
  Example: 100, 101 have "May=2000" and "June=3000"</p>
  
  <p>I need to get the ids, by using only EXCEPT.</p>
  
  <p>2) If the "id" has month "May" and price "2000", but the same "id" does not have month "June" and price "3000"</p>
  
  <p>Example: 192 has "May=2000" but not "June=3000"</p>
  
  <p>Please don't use IN.</p>