Patent · US Active

Upgrading column-based databases

US8924384B2 · kind B2 · utility

127Cited by

4References

20Claims

0Family size

Assignee

SAP AG · DE

Inventors

Volker Driesen · Heidelberg, DE
Peter Eberlein · Malsch, DE

Key dates

Filing date	Aug 4, 2010
Grant date	Dec 30, 2014
Priority date	—
Expiry date	Jan 15, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/217
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Techniques are described in which at least one column is added to a table in a column-based database that has a plurality of columns and table fields. A shadow-in-place upgrade of the column-based database can be performed that adds at least one new column to the database. Thereafter, access to the column-based database can be seamlessly enabled before, during, and after the upgrade through a plurality of views. The views define a subset of the fields in the database that are visible. Related apparatus, systems, techniques and articles are also described.

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