Managing data with flexible schema
US9898492B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2014 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Jun 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/217
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The subject matter described herein relates to managing data with flexible schema. A method, computer storage medium, and system are provided for managing data with flexible schema. In one embodiment, the method comprises providing a logical view for logical tables of a database; and managing mappings between the logical tables and a physical table according to predefined mapping constraints, each of the logical tables mapped as a part of the physical table. The mapping constraints at least specify that (i) a logical column in the logical tables is mapped to at least one physical column in the physical table, and (ii) distinct logical columns in one of the logical tables are mapped to distinct physical columns in the physical table. As a result, schema evolution may be done with minimized data migration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.