transaction log for entries which alter the storage information initially passed to it at some point an entity may wish to know the current storage information for the table when this occurs a message is passed to the monitoring routine and the monitoring routine transfers the storage information to the requesting entity without accessing the database application_number US 65885203 A description 0019 fig1 depicts data processing system 100 which includes processor 102 and display 104 display 104 includes display screen 106 which may be implemented utilizing a cathode ray tube crt a liquid crystal display lcd an electroluminescent panel or the like data can be entered into data processing system 100 by means of a mouse 118 or keyboard 116 in addition to mouse 118 and keyboard 116 data can be entered using a track ball joystick touch sensitive tablet or screen trackpad or glidepad mouse 118 may be utilized to move a pointer or cursor on display screen 106 processor 102 may also be coupled to one or more peripheral devices such as modem 108 or disk drive 110 each of which may be internal or external to the enclosure of processor 102 data processing system 100 may also be connected to network 112 in order to communicate with other computer units network 112 may be a local intranet e g a lan or wan or the network of computers known as the internet or both an output device such a printer 114 may also be coupled to processor 102 those persons skilled in the art of computer system design should recognize that display 104 keyboard 116 and the pointing device 118 may each be implemented.