ORA-01154
        database busy. Open, close, mount, and dismount not allowed now
        
        
        Cause
        Some operation is in progress that expects the opened/mounted state of this instance to remain the same.
        Action
        Wait for the operation to complete then retry. If attempting to do a shutdown, SHUTDOWN ABORT will work.  If this is a shutdown of a standby database that is operating in NO DATA LOSS mode, you must shutdown the primary database first.
        
     
    
    
        ORA-01154
        database busy. Open, close, mount, and dismount not allowed now
        
        
        Cause
        Some operation is in progress that expects the opened/mounted state of this instance to remain the same.
        Action
        Wait for the operation to complete then retry. If attempting to do a shutdown, SHUTDOWN ABORT will work.  If this is a shutdown of a standby database that is operating in NO DATA LOSS mode, you must shutdown the primary database first.
        
     
    
    
        ORA-01154
        database busy. Open, close, mount, and dismount not allowed now
        
        
        Cause
        Some operation is in progress that expects the opened/mounted state of this instance to remain the same.
        Action
        Wait for the operation to complete then retry. If attempting to do a shutdown, SHUTDOWN ABORT will work.  If this is a shutdown of a standby database that is operating in NO DATA LOSS mode, you must shutdown the primary database first.