title: join on two foreign keys from same table in SQL
body: <p>Not quite sure how to ask this question so if someone wants to edit to better articulate please. However I want to join on a user table however the row has two FKs from the user table</p>
  
  <pre><code>item_tbl
  id | ownerId | lastModifiedById | itemName
  ------------------------------------------
  1  |       1 |                2 | "Blog Post"
  
  user_tbl
  id | username
  -------------
  1  |     John
  2  |    Sally
  </code></pre>
  
  <p>Desired output (or something like it)</p>
  
  <pre><code>Owner Username | last modified by |       item
  ----------------------------------------------
            John |            Sally | "Blog Post"
  </code></pre>
  
  <p>currently i'm doing two queries to get this information. Is there a better (read: more efficient) way?</p>