System and method for correlated fragmentations in databases
US7162478B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2001 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Nov 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99938
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods to identify a home fragment for a child row of a child table of a database, the home fragment for a row being the fragment in which the row is stored. A child key value of the child row is obtained and used to identify a fragment of a parent table that is correlated with the child key value of the child row. The child key value being the value of a child key attribute of the child row and represents a reference to a parent row in a parent table. The result is the home fragment for the child row that corresponds to identified fragment of a parent table that is correlated with the child key value of the child row.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.