title: Oracle error log file
body: <p>I'm running following block in Oracle (what does it do is not so important)</p>
  
  <pre><code>BEGIN
    SDO_RDF_INFERENCE.CREATE_RULES_INDEX(
      'my_index',
      SDO_RDF_Models('my_model'),
      SDO_RDF_Rulebases('RDFS'));
  END;
  </code></pre>
  
  <p>and getting following error:</p>
  
  <pre><code>ORA-29532: Java call terminated by uncaught Java exception: java.lang.NullPointerException
  ORA-06512: at "MDSYS.RDF_APIS_USER", line 7
  ORA-06512: at "MDSYS.RDF_APIS_USER", line 9
  ORA-06512: at "MDSYS.RDF_APIS", line 477
  ORA-06512: at line 2
  29532. 00000 -  "Java call terminated by uncaught Java exception: %s"
  *Cause:    A Java exception or error was signaled and could not be
             resolved by the Java code.
  *Action:   Modify Java code, if this behavior is not intended.
  </code></pre>
  
  <p><strong>Question:</strong> how can I access Oracle error log or something to get full stack trace or any other information about exception.</p>