Database cloning
US8832028B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Aug 25, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2061
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A database management system (DBMS) maintains a clone database in a clone space without storing an entire copy of the database and without requiring a snapshot function from an underlying storage device. This DBMS may receive a database command to access a data block of the clone database, and may determine whether the data block is stored in the clone space. If the data block is not stored in the local clone space, the DBMS may receive the data block from a backup copy of the database. If the database command comprises a write operation, the DBMS may perform the write operation to update the data block, and may store the updated data block in the clone space. Also, if the database command comprises a read operation, the DBMS may perform the read operation on the data block received from the backup copy of the database.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.