Method and means for evaluating the performance of a database system referencing file external to the database system
CA 2283055 C · Owner: Ibm Canada Limited-Ibm Canada Limitee · Inventors: Gartner, Jason Michael; Pomeroy, Ronald James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a system and method for testing a database system which includes, external file references to files stored on a remote file system. The invention includes a control table, within the database management system which enables controlled but random access to files on the, remote file system that are accessed through external file references. A tool within the remote file, system maintains the control table and creates deletes and exercises the test , files within the external file system. Triggers on base tables within the database management system are used to maintain, the integrity of the control table.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 23, 1999 and granted September 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.