title: Difference between two unordered delimited strings in PL/SQL
body: <p>Is there a simple elegant method to return the difference between two unordered, delimited strings in Oracle using PL/SQL?</p>
  
  <p>Example:</p>
  
  <pre><code>String A: "a1, b4, g3, h6, t8, a0"
  String B: "b4, h6, a0, t8, a1"
  </code></pre>
  
  <p>Difference: "g3"</p>
  
  <p>I don't have access to APEX_UTIL as suggested in this answer <a href="https://stackoverflow.com/questions/5691704/difference-between-two-unordered-deliminted-lists-oracle">Difference between two unordered deliminted lists (Oracle)</a></p>