ORA-38763
        flashback not started; enabled threads have changed
        
        
        Cause
        A FLASHBACK DATABASE command did not start.  The set of enabled threads changed during the time to flash back.
        Action
        The flashback cannot be performed.  Perform a restore and an incomplete recovery instead.
        
     
    
    
        ORA-38763
        flashback not started; enabled threads have changed
        
        
        Cause
        A FLASHBACK DATABASE command did not start.  The set of enabled threads changed during the time to flash back.
        Action
        The flashback cannot be performed.  Perform a restore and an incomplete recovery instead.
        
     
    
    
        ORA-38763
        flashback not started; enabled threads have changed
        
        
        Cause
        A FLASHBACK DATABASE command did not start.  The set of enabled threads changed during the time to flash back.
        Action
        The flashback cannot be performed.  Perform a restore and an incomplete recovery instead.