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Monish Gupta, 51Vienna, VA

Known as:
Munish Gupta Munish Gupda Nunish Gupta
Related to:
Anuja Gupta 42 Manish Gupta 51

Monish Gupta Phones & Addresses

Vienna, VA   

Cottonwood Heights, UT   

Coral Gables, FL   

Redwood City, CA   

San Francisco, CA   

Salt Lake City, UT   

Allentown, PA   

Philadelphia, PA   

Brighton, MA   

Union City, CA   

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Mentions for Monish Gupta

Publications & IP owners

Us Patents

Efficient Index Versioning In Multi-Version Databases

US Patent:
2007011, May 24, 2007
Filed:
Nov 22, 2005
Appl. No.:
11/285340
Inventors:
Monish Gupta - Santa Clara CA, US
Scott Lashley - Portland OR, US
Daniel Wood - Fremont CA, US
International Classification:
G06F 7/00
US Classification:
707101000
Abstract:
A method and system are provided for maintaining a database index version. The database index includes a secondary node affiliated with each leaf node of the index. The secondary node stores version information for each leaf node. A pointer in a header section of the leaf node connects the leaf node to the secondary node. In addition, a status list is maintained to identify each transaction. At such time as a scan of a database index is conducted and an index item is returned, a computation is conducted using the transaction identifiers in the secondary node, the delete flag in the leaf node, and the status list contents for the scanning transaction. The computation and associated logic will determine whether to accept or reject an item. The method results in returning a correct version of the item as existed at the time of start of the scanning transaction.

Computer Program Product For Conducting A Lock Free Read

US Patent:
2008007, Mar 27, 2008
Filed:
Sep 22, 2006
Appl. No.:
11/534564
Inventors:
Monish Gupta - Santa Clara CA, US
Scott David Lashley - Portland OR, US
International Classification:
G06F 17/30
US Classification:
707 8
Abstract:
The present invention expounds upon the ANSI “read committed” isolation level by allowing readers to read committed data without waiting for a concurrent writer to the data to finish. The method returns a last committed version of the data as it existed prior to changes made by the concurrent writer. Only two versions of any data record are required to be stored in the record data store, the last committed version and the current version. The last committed version may be generated from an undo log record. Locating the appropriate undo log record may be accomplished by storing a log sequence number in a lock data structure associated with the requested data record. A transaction flag may also stored in the lock data structure to facilitate generating the last committed version. The method may also utilize one or more locks to detect a concurrent writer to the requested data.

Possible Relatives

David Gupta  Dalip K Gupta  Aakash Gupta  Deborah F Gupta  Deep S Gupta  Deepa Gupta  Deepti Gupta  Monish Sharma 

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