Tablespace-relative database pointers
US6272503A · kind A · utility
35Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1997 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | May 30, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99955
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A database containing datafiles is partitioned into a set of tablespaces. Every disk pointer pointing to a data item in a datafile refers to a tablespace-relative file number for the datafile. Data pointed to by a tablespace-relative disk pointer is retrieved by first checking the cache, and upon a cache miss, the tablespace-relative file number is translated into an absolute file number according to a latch-free look up technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.