title: PL/SQL how can ı create string function=
body: <p>In the desired structure, the function will take 2 string parameters.</p>
  <ul>
  <li>If 2nd String is found in 1st String; The 1.string in the 2.string will be removed and added to the end of the 2.string.</li>
  <li>If it is not found, the error 'NOT FOUND' will be given.</li>
  </ul>
  <p>The desired structure should be as follows.</p>
  <img src="https://i.stack.imgur.com/OAo8F.png">