Optimizing relational database queries with multi-table predicate expressions
US9892117B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Jun 28, 2016 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Jun 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/951
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Responding to relational database queries (for example, SQL queries) in a new way. More specifically, qualifying queries are written (for example, written by a human individual) in a way so that a join operation precedes a row limiting operation. Notwithstanding the fact that the join operation precedes the row limiting operation, when responding to the query, machine logic (for example, software) performs the row limiting operation before the join operation. This can improve time and processing efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.