Patent · US Active

Extended handling of ambiguous joins

US8032520B2 · kind B2 · utility

7Cited by

3References

20Claims

0Family size

Assignee

SAP AG · DE

Inventors

Stefan Dipper · Wiesloch, DE
Christel Rueger · Hanau, DE
Stefan Biedenstein · Bad Schönborn, DE

Key dates

Filing date	Oct 4, 2007
Grant date	Oct 4, 2011
Priority date	—
Expiry date	Oct 19, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/24544
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A system, method and article for handling ambiguous joins among a plurality of tables based on a query are disclosed. Metadata associated with the plurality tables is generated. The metadata comprises ambiguous join dimensions and special measures, where the ambiguous join dimensions provide a list of all dimensions used in conditions of the query that are ambiguous, and the special measures provide a list of measures that are affected by the ambiguous join dimensions. Data is aggregated in the plurality of tables according to an aggregation level expressed in the query and based on the metadata.

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