The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 11, 2022

Filed:

Oct. 27, 2017
Applicant:

Sap SE, Walldorf, DE;

Inventors:

Anisoara Nica, Waterloo, CA;

Reza Sherkat, Waterloo, CA;

Mihnea Andrei, Issy les Moulineaux, FR;

Assignee:

SAP SE, Walldorf, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 16/23 (2019.01); G06F 16/21 (2019.01); G06F 16/27 (2019.01); G06F 16/22 (2019.01); G06F 16/2458 (2019.01); G06F 16/2453 (2019.01);
U.S. Cl.
CPC ...
G06F 16/2365 (2019.01); G06F 16/211 (2019.01); G06F 16/217 (2019.01); G06F 16/2282 (2019.01); G06F 16/2462 (2019.01); G06F 16/24545 (2019.01); G06F 16/278 (2019.01);
Abstract

Disclosed herein are system, method, and computer program product embodiments for using a data statistic as a dynamic data integrity constraint. An embodiment operates by defining a data statistic for a column or a set of columns of a partition of a plurality of partitions of a database table. The embodiment creates a constraint data statistics object based on the data statistic. The embodiment receives a query for the database table. The embodiment determines the constraint data statistics object is consistent with a data state of the partition. The embodiment derives an implied constraint based on the constraint data statistics object. The embodiment processes the query for the partition based on the implied constraint.


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