title: ORA-02303: cannot drop or replace a type with type or table dependents
body: <p>I'm newbee in oracle and
  I try to change <code>varchar(50)</code> to <code>250</code></p>
  <pre class="lang-sql prettyprint-override"><code>CREATE OR REPLACE TYPE CEQ_OWNER.TYPE_REC_PARAE2
  AS OBJECT    
  (
      ...
      BONETAT_DESC  VARCHAR2(250),
      ... 
  )
  /    
  </code></pre>
  <p>I get ORA-02303: cannot drop or replace a type with type or table dependents</p>