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:
Sep. 14, 2004
Filed:
Dec. 19, 2001
Gary Martin Gilbert, Arlington Heights, IL (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A system and method for restructuring the physical storage of a table of a database. The records of the table are grouped into one or more partitions, each of which is stored in a file having a number of fixed sized blocks. Each of the blocks has a first format. Restructuring the physical storage of the table involves changing, to a second format, the format of the blocks of the file in which a partition of the table is stored. Additionally, control data that includes a catalog table and one or more file labels describing the partitions in which the records of the table are grouped, is altered to indicate that the blocks of a partition are enabled to be stored in the second format. Restructuring occurs in phases so as to minimize the inaccessibility of the table being restructured to updates.