Method and apparatus for data replication
CA 2172517 C · Owner: Oracle International Corporation · Inventors: Daniels, Dean; Jain, Sandeep
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides the ability to replicate modifications to a data item made at a local site to multiple remote sites in a peer-to-peer environment. Information regarding these replicated modifications (e.g. insert delete or, update) and associated exceptional occurances are contained in a set of replication tables which include transaction table transaction nodes tables, calls table, call nodes tables and an exceptions table as shown in fig. 3. The present invention provides both value-oriented row-level and logic-oriented procedure-level replications. The row-level replication uses the new and old values of a data item at an originating site to modify the remote site and the …
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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 9, 1994 and granted February 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2016.
- 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.