ORA-31494
        could not activate a  LogMiner session
        
        
        Cause
        Failure during activation of a LogMiner session while advancing an asynchronous change set.  This is an internal error.
        Action
        Contact Oracle Corporation
        
     
    
    
        ORA-31494
        could not activate a  LogMiner session
        
        
        Cause
        Failure during activation of a LogMiner session while advancing an asynchronous change set.  This is an internal error.
        Action
        Contact Oracle Corporation
        
     
    
    
        ORA-31494
        could not activate a  LogMiner session
        
        
        Cause
        Failure during activation of a LogMiner session while advancing an asynchronous change set.  This is an internal error.
        Action
        Contact Oracle Corporation