title: Count of each characters in given string
body: <p><strong>I require the count of each character in a string.</strong><br>
  Example: </p>
  
  <pre><code>SELECT ('aabcccdee') from dual;  
  </code></pre>
  
  <p>Result:  </p>
  
  <pre><code>a(1),b(2), c(3), d(1),e(2).  
  </code></pre>
  
  <p>Thanks in advance.</p>