title: How to use BOOLEAN type in SELECT statement
body: <p>I have a PL/SQL function with BOOLEAN in parameter:</p>
  
  <pre><code>function get_something(name in varchar2, ignore_notfound in boolean);
  </code></pre>
  
  <p>This function is a part of 3rd party tool, I cannot change this.</p>
  
  <p>I would like to use this function inside a SELECT statement like this:</p>
  
  <pre><code> select get_something('NAME', TRUE) from dual;
  </code></pre>
  
  <p>This does not work, I get this exception:</p>
  
  <blockquote>
    <p>ORA-00904: "TRUE": invalid identifier</p>
  </blockquote>
  
  <p>As I understand it, keyword <code>TRUE</code> is not recognized.</p>
  
  <p>How can I make this work?</p>