Low-overhead built-in timestamp column for relational database systems
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 24, 2009
Grant Date -
Aug 11, 2005
app pub date -
Feb 11, 2004
filing date -
Feb 11, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for providing a timestamp for data in a database system, in which the database system operates in accordance with a database schema. The method includes providing a hidden timestamp column in a table in the database system, in which the hidden timestamp column includes a timestamp value for each row of data in the table. The timestamp value indicates a last time a corresponding row of data in the table was previously modified. The hidden timestamp column does not appear in the database schema by default and exposes the timestamp value for a given row of data in the table only to a query that calls the timestamp column by name.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully