Patent · US Active

Core data services extensibility for entity-relationship models

US9619552B2 · kind B2 · utility

22Cited by

98References

18Claims

0Family size

Assignee

SAP SE · DE

Inventors

Timm Falter · Sinsheim, DE
Daniel Hutzel · Karlsruhe, DE
Stefan Baeuerle · Walldorf, DE

Key dates

Filing date	Sep 6, 2013
Grant date	Apr 11, 2017
Priority date	—
Expiry date	Jun 22, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/288
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Embodiments extend the relational model and query language to recognize features of tables and higher level entity-relationship models (ERMs). Extension language is implemented in the data design language (DDL) to incorporate tables, entities (and views) having custom-defined/semantic structure, rather than being limited to primitive types (e.g. flat tables as in standard SQL). The extension language includes an indication that a query is to include all active elements for each table extension or entity extension that is active. The extension language can be chained to extend a table or entity that has been extended.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.