Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Method and system for generating a statistical summary of a database using a join synopsis Image Number 6 for United States Patent #6477534. A method for generating an approximate answer to a query in a database environment in which the database has a plurality of base relations. A query relating to a database is received, and an approximate answer to the query is generated such that the approximate answer is based on at least one join synopsis formed from the database. The method further includes steps of forming a sample-tuple set for at least one selected base relation of a plurality of base relations of a database such that each sample-tuple set contains at least one sample tuple from a corresponding base relation, and forming a join synopsis set for each selected base relation such that each join synopsis set contains a join synopsis for each sample tuple in a sample-tuple set. A join synopsis of a sample tuple is based on a join of the sample tuple and at least one descendent relation of the sample tuple. All join synopsis sets form a statistical summary of the database and are stored.       Recently Added Patents Medical instrument having a display unit that displays a shape of an insertion body inserted into an interior of an object to be examined Projectile having deployable fin Microprocessor with first processor for debugging second processor Molecule detection device formed in a semiconductor structure Information recording method, information recording medium, and information reproducing method, wherein information is stored on a data recording portion and a management information recording Color filter array alignment detection Power supply arrangement with a first voltage supply device and a second voltage supply device   Randomly Featured Patents Digital acceleration detecting system Fabrication method of T-shaped gate electrode in semiconductor device Optical fiber assembly and manufacturing method for the same Method and system of directing an antenna in a two-way satellite system Magnetic recording medium and process for producing the same Point-of-sale terminal Microscope with stand Methods of using SNS-595 Method of stimulating growth using neurotrophic peptides Identify negotiation switch protocols © 2006-2008 PatentGenius. All Rights Reserved.