title: Oracle Flashback on System Tables
body: <p>Is there a possibility to use the Oracle Flashback on System tables, such as the <code>user_tables</code> or <code>cols</code>?</p>
  
  <p>I was able to successfully issue Flashback queries against the tables I created, but when I tried the same against System tables, I get <code>ORA-01031: insufficient privileges</code>. Does it require granting of special privileges?</p>