Patent · US Active

Mirroring, in memory, data from disk to improve query performance

US9292564B2 · kind B2 · utility

44Cited by

8References

39Claims

0Family size

Assignee

Oracle International Corporation · US

Inventors

Jesse Kamp · Castro Valley, US
Amit Ganesh · San Jose, US
Vineet Marwah · San Ramon, US
Vivekanandhan Raja · Foster City, US
Tirthankar Lahiri · Palo Alto, US
Allison L. Holloway · Redwood City, US
Sanket Hase · Mountain View, US
Shasank K. Chavan · Menlo Park, US
Niloy Mukherjee · Beaverton, US
Teck Hua Lee · Belmont, US
Michael J. Gleeson · Saratoga, US
Krishna Kunchithapadam · Portland, US

Key dates

Filing date	Jul 21, 2014
Grant date	Mar 22, 2016
Priority date	—
Expiry date	Jul 21, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06F2201/855
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Techniques are provided for maintaining data persistently in one format, but making that data available to a database server in more than one format. For example, one of the formats in which the data is made available for query processing is based on the on-disk format, while another of the formats in which the data is made available for query processing is independent of the on-disk format. Data that is in the format that is independent of the disk format may be maintained exclusively in volatile memory to reduce the overhead associated with keeping the data in sync with the on-disk format copies of the data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.