Automatic storage of persistent objects in a relational schema
US5295256A · kind A · utility
362Cited by
4References
27Claims
0Family size
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Key dates
| Filing date | Dec 14, 1990 |
| Grant date | Mar 15, 1994 |
| Priority date | — |
| Expiry date | Dec 14, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99933
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A translator for translating objects defined in an object-oriented programming environment to a relational database schema permits persistent storage of object instances as records in a relational database. Object instances are mapped to entity tables with object instances represented by entity records. Simple attributes are mapped to primitive typed attribute columns and class valued attributes are represented by foreign keys into entity attribute tables. Derived attributes are represented by joins of the parent and child entity records.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.