Light weight locking model in the database for supporting...

Details Light weight locking model in the database for supporting... Light weight locking model in the database for supporting...

2006-03-24

2009-12-29

Nguyen, Cam-Linh (Department: 2161)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

07640242

ABSTRACT:
A method for maintaining a long transaction database lock across multiple database sessions. It is determined if at least one row of a long transaction lock enabled table, identified in a long transaction lock request, is locked by a short or long transaction lock. If the row is not locked, locking the at least one row with a long transaction lock. The long transaction lock on the at least one row is associated with a current client session that generated the request. The long transaction lock can be transferred to another client session in response to a lock transfer request from the another client session.

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patent: 2005/0134902 (2005-06-01), Mihira et al.
patent: 2006/0123003 (2006-06-01), Lightstone et al.

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