title: How can I replace brackets to hyphens within Oracle REGEXP_REPLACE function?
body: <p>I'm a newbie in regular expressions. I want to replace any text string symbols like (,),[,] to hyphens (for example):</p>
  
  <pre><code>SELECT REGEXP_REPLACE ('(&lt;FIO&gt;)', '(', '-') FROM dual;
  </code></pre>
  
  <p>This gives me ORA-12725 error.</p>
  
  <p>Please, explain me, what's wrong?
  Thanks.</p>