Method for consistent multidatabase transaction processing
US4881166A · kind A · utility
82Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1987 |
| Grant date | Nov 14, 1989 |
| Priority date | — |
| Expiry date | Jul 24, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99939
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a concurrency control method and related system for permitting the correct execution of multiple concurrent transactions, each comprising one or more read and/or write operations, in a heterogeneous distributed database system. Read and write operations are processed at the required sites if no site cycles are detected. If any site cycles are detected in a read operation, then new sites are searched for. If any site cycle is detected for any of the sites for a write operation, then the transaction is aborted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.