The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2004
Filed:
Oct. 12, 2001
Applicant:
Inventors:
Douglas P. Brown, San Diego, CA (US);
Jeetendra Chaware, Andhra Pradesh, IN;
Assignee:
NCR Corporation, Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/730 ;
U.S. Cl.
CPC ...
G06F 1/730 ;
Abstract
Statistics regarding at least one attribute (or column) of a table in a database system are collected using an enhanced mechanism for faster collection. The statistics collection is based on scanning a sample of rows of a given table, with the sample being less than all the rows of the table. The percentage of rows to be read is specified in a statement submitted to the database system. The database system then uses the specified percentage to read the sample rows from the table for collecting statistics on the at least one attribute.