ORA-40688
        The date or time stamp string value does not conform to ISO 8601 format.
        
        
        Cause
        A string value that did not conform to the ISO 8601 format was used as input to an operation that attempted to convert it to a date or timestamp value.
        Action
        Supply a string value conforming to ISO 8601 format to the date or timestamp conversion operation.
        
     
    
    
        ORA-40688
        date or time stamp string value does not conform to ISO 8601 format
        
        
        Cause
        An attempt was made to convert the date or time stamp string value that did not conform to ISO 8601 format.
        Action
        Supply a proper date or time stamp string value conforming to ISO 8601 format for conversion.
        
     
    
    
        ORA-40688
        date or time stamp string value does not conform to ISO 8601 format
        
        
        Cause
        An attempt was made to convert the date or time stamp string value that did not conform to ISO 8601 format.
        Action
        Supply a proper date or time stamp string value conforming to ISO 8601 format for conversion.