Invention Grant
US07885919B2 Journaling database changes using minimized journal entries that may be output in human-readable form
失效
使用可能以人类可读形式输出的最小化日记条目更改日记数据库
- Patent Title: Journaling database changes using minimized journal entries that may be output in human-readable form
- Patent Title (中): 使用可能以人类可读形式输出的最小化日记条目更改日记数据库
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Application No.: US12109027Application Date: 2008-04-24
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Publication No.: US07885919B2Publication Date: 2011-02-08
- Inventor: Adam Thomas Stallman , Larry William Youngren
- Applicant: Adam Thomas Stallman , Larry William Youngren
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Martin & Associates, LLC
- Agent Derek P. Martin
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F17/00

Abstract:
A minimized journaling mechanism stores minimized journal data in a format that allows for display and outputting the journal data in human-readable form. When a change to a record occurs, instead of writing only the changed bytes, all of the bytes in each field that changed are written to the journal, along with all of the bytes in each field selected to be always journaled. A default object is created with default data in all of the fields. When the journal entry needs to be output in human-readable form, the default object is read, and the minimized journal entry is then overlaid on the default object. The result is an object that contains default data in all non-selected fields that were not changed, with the journal data in all fields and that did change and in all fields that were selected to always be journaled.
Public/Granted literature
- US20080222220A1 JOURNALING DATABASE CHANGES USING MINIMIZED JOURNAL ENTRIES THAT MAY BE OUTPUT IN HUMAN-READABLE FORM Public/Granted day:2008-09-11
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