ORACLE异常ORA-01843 || ORA-14411 || Invalid column index

nested exception is java.sql.SQLException: ORA-01843 : not a valid month 

   Solution: See to_date or to_date, and an input parameter format your comparison (, 'YYYYMMDD'?) (, 'YYYY-mm-dd'?) 

nested exception is java.sql.SQLException: Invalid column index 
   solution: input parameters and the data does not match the column 

ORA-14411 DDL not the approach run in parallel with other DDL 
   Solutions: 1. Find the sid locked session, Serial # 

    SELECT SID, Serial # from the session V $ T WHERE t.SID the IN (SELECT session_id locked_object from V $); 

    2. off the end of the process 

    alter system kill session 'sid, serial #';