title: Replace only leading zeros with space in Oracle SQL
body: <p>I want to replace only the leading zeros of the select query.</p>
  <p>I am using this:</p>
  <pre><code>SELECT REGEXP_REPLACE('00015201', '(0)', ' ') 
  FROM DUAL;
  </code></pre>
  <p>But the result is</p>
  <pre><code>Column
  --------
     152 1
  </code></pre>
  <p>I am expecting</p>
  <pre><code>Column
  --------
     15201
  </code></pre>