title: Splitting or Substr one column into multiple columns
body: <p>I have a table  <code>poll</code> and i have 600 rows in <code>poll</code>. The type is <code>CLOB</code>. Some rows contain 12000 or 15000 character in <code>data</code> column. When it contain 12200 character i need make multi column like that:</p>
  <pre><code>data1        data2        data3        data4
  -----------  -----------  -----------  -----------
  first 4000   second 4000  third 4000   last 200
  </code></pre>
  <p>How can i do this?</p>