Non-equijoin metadata
US8914352B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2007 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Feb 1, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24534
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The subject mater herein relates to database management and, more particularly, to non-equijoin metadata. Various embodiments described herein provide systems, methods, software, and data structures to facilitate non-equijoins of data. Some such embodiments include a data store to hold metadata describing relationships between database tables. The relationships between database tables may include one or more non-equijoins of tables in the form of one or more table-column pairs of a first table being non-equal to one or more table-column pairs of a second table. In some embodiments, the metadata may be used by a query generator to build query statements including one or more non-equijoin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.