Resources Contact Us Home
Application-specific conflict detection for weakly consistent replicated databases

Image Number 8 for United States Patent #5671407.

Write operations for weakly consistent replicated database systems have application-specific embedded dependency queries and related descriptions of the results that are expected to be returned when the respective dependency queries are run against the database. The dependency queries are arbitrary queries that are provided by the application to satisfy the requirements of the application. Write operations that conflict with the current state of any given instance of such a database are detected by comparing (a) the results that are returned when the dependency queries for those writes are run against the given instance of the database with (b) the results that are expected to be returned.

  Recently Added Patents
Transmitting a synchronizing signal in a packet network
Rotating-body electrification mechanism, image carrier unit, process cartridge, image forming apparatus, and method for electrifying image carrier unit
Block polymers and their process of preparation
Methods of fabricating semiconductor device
Image-processing method and program, and image-processing apparatus
Movable assemblies for an image reader unit and a cover unit in an image formation apparatus
Process for the preparation of ethylene homopolymers or copolymers in a high-pressure reactor controlled by a model based predictive controller
  Randomly Featured Patents
Infra-red transmitter/receiver for a desktop personal computer
Hinged tracking system
Disintegratable masking label
Panel assembly for a space-based power generation system
Appliance for making coffee, tea and the like
Method for depositing a resistive material in a field emission cathode
Frequency-selective light coupler-decoupler device
Pyrotechnic composition for producing radiation-blocking screen
Method for fabricating avalanche photodiode