title: extract a substring from clob in oracle
body: <p>I have a clob with data </p>
  
  <pre><code>&lt;?xml version='1.0' encoding='UTF-8'?&gt;&lt;root available-locales="en_US" default-locale="en_US"&gt;&lt;static-content language-id="en_US"&gt;&lt;![CDATA[&lt;script type="text/javascript"&gt;
  function change_case()
  {
      alert("here...");
      document.form1.type.value=document.form1.type.value.toLowerCase();
  }
  &lt;/script&gt;
  
  &lt;form name=form1 method=post action=''''&gt;
  &lt;input type=text name=type value=''Enter USER ID'' onBlur="change_case();"&gt;
  &lt;input type=submit value=Submit&gt; &lt;/form&gt;
  &lt;/form&gt;]]&gt;&lt;/static-content&gt;&lt;/root&gt;
  </code></pre>
  
  <p>I want to extract the line with the onblur attribute, in this case:</p>
  
  <pre><code>&lt;input type=text name=type value=''Enter USER ID'' onblur="change_case();"&gt;
  </code></pre>