title: How Can I solve ORA-04007
body: <p>I'm using toad for oracle 11g, I tried to <code>alter</code>  a <code>sequence</code> using the UI(user interface).</p>
  
  <p>I want to change the <code>currval</code>.</p>
  
  <p>I block with this error :</p>
  
  <blockquote>
    <p>ORA-04007: MINVALUE cannot be made to exceed the current value</p>
  </blockquote>