Database system and query execution method
US11709839B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 10, 2021 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Sep 25, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2455
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A database system includes a plurality of DBMSs included in a plurality of nodes. Each DBMS is a first or a second DBMS. The first DBMS transfers a search query and does not execute data retrieval, and the second DBMS executes data retrieval. The plurality of nodes configure one or more node groups. Each node group includes a first node and one or more second nodes. In each node group, the first node is a logical computer that provides a first storage area and executes a first DBMS and the second node is a logical computer that provides a second storage area and executes a second DBMS, each node in the node group stores the same database therein, and data retrieval from the database in the node group is executed by one or more second DBMSs in the node group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.