Projection constraint policies in a database system
US12314319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2024 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Jan 31, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6227
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A database system facilitates secure data sharing by implementing projection constraints within a query processing framework. Upon receiving a query directed to a shared dataset, the system, utilizing hardware processors, identifies a subset of data within the dataset that is subject to a projection constraint policy. The applicability of the projection constraint is determined based on the context of the query, which is derived from a data sharing agreement. The system processes the query by selectively restricting the projection of data values from constrained columns, while allowing specific operations to be performed on the data. The output generated in response to the query is compliant with the projection constraint policy, providing derived data based on the allowed operations without revealing the actual data values. This ensures the confidentiality of sensitive information while enabling collaborative data analysis and sharing among various users of the database system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.