Backward compatibility in database schemas
US7844639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2005 |
| Grant date | Nov 30, 2010 |
| Priority date | — |
| Expiry date | Oct 27, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of accommodating at least one difference between a first database schema and a second database schema is provided. The method includes receiving a request from a first application program that is operationally dependent upon the first database schema, the request being received at a second application program that is operationally dependent upon the second database schema. Thereafter, the method identifies if there is a difference between the first database schema and the second database schema. When there is a difference, the method identifies the difference between the first database schema and the second database schema to identify at least one different schema definition element and associates the different schema definition element with a reserved element. The reserved element may have a corresponding reserved element provided in the first database schema. A response is then communicated to the first application program including the reserved element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.