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. 16, 2014
Filed:
Oct. 21, 2011
Thomas Fanghaenel, San Jose, CA (US);
Uttam Jain, San Jose, CA (US);
Quanzhong LI, San Jose, CA (US);
Guy M. Lohman, San Jose, CA (US);
Richard S. Sidle, Mountain View, CA (US);
Ioana R. Stanoi, San Jose, CA (US);
Robbert Van Der Linden, Scotts Valley, CA (US);
Thomas Fanghaenel, San Jose, CA (US);
Uttam Jain, San Jose, CA (US);
Quanzhong Li, San Jose, CA (US);
Guy M. Lohman, San Jose, CA (US);
Richard S. Sidle, Mountain View, CA (US);
Ioana R. Stanoi, San Jose, CA (US);
Robbert Van der Linden, Scotts Valley, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments of the invention relate to a multi-level database compression technique to compress table data objects stored in pages. A compact dictionary structure is encoded that represents frequent values of data at any level of granularity. More than one level of compression is provided, wherein input to a finer level of granularity is an output of a coarser level of granularity. Based upon the encoded dictionary structure, a compression technique is applied to a stored page to compress each row on the page. Similarly, a de-compression technique may be applied to decompress the compressed data, utilizing the same dictionary structures at each level of granularity.