Storing the uncompressed data length in a LOB map to speed substring access within a LOB value
US6343293B1 · kind B1 · utility
16Cited by
74References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 1999 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | May 28, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99942
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and article of manufacture for retrieving data in a computer. In accordance with the present invention, large object data is compressed until the large object data fits within one data page. An uncompressed large object data length is stored in a large object map, wherein the stored uncompressed large object data length is associated with the compressed large object data. A portion of the compressed large object data is located for performing a data processing function by using the stored uncompressed large object data length. The portion of the large object data is stored in the database.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.