title: ORACLE server session terminated by fatal error
body: <p>I have edited a <code>Trigger</code> and try to save. then i got below error.</p>
  
  <pre><code>Error: ORA-00603: ORACLE server session terminated by fatal error
  ORA-00600: internal error code, arguments: [kqlidchg1], [], [], [], [], [], [], [], [], [], [], []
  ORA-00604: error occurred at recursive SQL level 1
  ORA-00001: unique constraint (SYS.I_PLSCOPE_SIG_IDENTIFIER$) violated
  </code></pre>
  
  <p>i can't save my <code>trigger</code> with modifications. how can i solve this ?</p>