Unobtrusive point-in-time consistent copies
US7133884B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Mar 3, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques to create physically and transactionally consistent copies of one or more database objects without impacting the availability of the target database objects are described. In one technique, a consistent copy is created as of the time a copy utility is executed. In another technique, a consistent copy is created as of an arbitrary specified time. This approach modifies a prior copy to bring it “up-to-date.” In yet another technique, a consistent copy is created by starting with a current snapshot of the target database objects and selectively removing updates from it back to a user specified arbitrary point-in-time. Each of the described techniques generate consistent copies of the target database objects without blocking users from accessing the target objects during the copy operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.