title: Add existing function to Package PLSQL
body: <p>I am quite new to PLSQL programming so I am still facing general problems like this one.</p>
  
  <p>I have developed some standalone functions (Oracle PLSQL functions) and I want to group them under the same package. </p>
  
  <p>So I created a new package, but I have few questions about what to do next:</p>
  
  <ol>
  <li>Is there any possible way to link directly functions to my package? I don't think so, but maybe...</li>
  <li>Am I allowed to name functions within the package in the same way as the external functions or I will cause a scope problem?</li>
  </ol>
  
  <p>Thank you for your help.
  Marcello</p>