Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Restructuring view maintenance system and method










Image Number 10 for United States Patent #6915305.

A database maintenance system and method are particularly suitable for maintaining a consistency of data between two or more database tables having schemas that may be heterogeneous (e.g., restructuring views of each other). Typically, one table is a base table and a second table is a restructuring view of the base table and may have been generated for faster query response, research, or the like. The restructuring view may have occurred naturally, or the base table may have been converted to the restructuring view using a series of operators and optionally, a middleware schema. The restructuring view maintenance system is preferably configured to monitor changes to the base table, including changes to data and to metadata. The maintenance system is configured to receive notification of a modification to a base table, investigate the modifications, and determine which operator(s) have been used to convert the base table to the restructuring view. For each modification to the base table, the system then determines, according to the type of modification and the type of transformation used, which of a selected group of actions to take to map the modification onto the restructuring view. The selected group of actions may include variously: insert, update, delete, rename relation, drop table, and rename column, according to the type of modification and the mapping of the relationship between the base table and the target table.








 
 
  Recently Added Patents
RF/optical shared aperture for high availability wideband communication RF/FSO links
Synthesis of amines and intermediates for the synthesis thereof
Bid optimization in search engine marketing
Bulk vending apparatus, system and method
Computerized apparatus for identifying industries for potential transfer of a job function
Client network device and method for adjusting parameters of client traffic windows based on discovery of other network devices
Techniques for performing translation of messages
  Randomly Featured Patents
Apparatus for winding coaxial insulation onto a winding core
Golf bike
Chain-extended poly(aryl ether ketones)
Method and apparatus for document processing
Process for producing degummed vegetable oils and gums of high phosphatidic acid content
Use of unsaturated aldehyde and alkanol derivatives for their mosquito repellency properties
Image processing
Forehearth feeder tube lift system
Photographic material for use in photolithography
Method for combining two images based on eliminating background pixels from one of the images