title: PL/SQL string tasks
body: <p>I need to work on two tasks in PL/SQL:</p>
  
  <ol>
  <li><p>Is to display the first characters of each word in the string e.g. "Standard Query Language", so it should return value as "SQL". </p></li>
  <li><p>converting text "apple" to upper caps "APPLE", but not using the upper case or lower case predefined functions.</p></li>
  </ol>
  
  <p>is it possible in PL/SQL, by not using advanced level functions but just beginner level approach.</p>