title: SQL find where two tables does not match (combined key)
body: <p>I have the following two tables:</p>
  
  <pre><code>Table: user_has_academy_team
  Columns:
  user_id int(11) PK
  academy_team_id int(11) PK
  timestamp   datetime
  </code></pre>
  
  <hr>
  
  <pre><code>Table: user_has_academy_module
  Columns:
  id  int(11) AI PK
  user_id int(11)
  module_id   int(11)
  academy_team_id int(11)
  academy_id  int(11)
  sort_number int(11)
  is_complete int(11)
  score_to_pass   int(11)
  is_open int(11)
  deadline    datetime
  module_version_id   int(11)
  waiting_approval    int(11)
  </code></pre>
  
  <hr>
  
  <p>I wish to find all the records in the table <code>user_has_academy_module</code> where <code>academy_team_id</code> and <code>user_id</code> does not match in <code>user_has_academy_team</code></p>