Patent №
US 7,487,140
Granted
2009-02-03
Filed 2002
Owner
IBM CORPORATION
Lab
AI components
4
nlp · kr · planning · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
10320909
A method for executing a query to access data stored in a database, wherein the query includes a plurality of DISTINCT keys, is disclosed. The method of the present invention includes providing a first DISTINCT operation on a first DISTINCT key, storing data fetched from the first DISTINCT operation in a master workfile if more than one sort process is needed to execute the query, and utilizing the master workfile to perform subsequent DISTINCT operations for the other DISTINCT keys.
AI classification
Ownership
IBM CORPORATION
assignment · 135980319
Assignors
CHEN, YAO-CHING, FUH, YOU-CHIN, LEBOVITZ, ALLAN B., LEE, LI-MEY, LIN, FEN-LING, LIU, LEE-CHIN HSU, WANG, YUN, ZHEN, BINGHUA
On an employer assignment, the assignors are typically the inventors.