公开(公告)号：US12130818B2

公开(公告)日：2024-10-29

申请号：US18216709

申请日：2023-06-30

Applicant: Hitachi, Ltd.

Inventor： Tianben Ding ,  Mika Takata ,  Toshihiko Kashiyama ,  Hiroaki Masuda

IPC: G06F16/24 ,  G06F16/242 ,  G06F16/2455

CPC classification number: G06F16/24564 ,  G06F16/2425

Abstract: Provided are a data management apparatus, a data management system, and a data management method capable of creating an alternative for a useful query when a query for operating a database violates a data handling regulation of the database. When data scheduled to be generated based on the database by the query violates a rule that is the data handling regulation of the database, a data processing server generates an alternative query candidate to replace the query. The data processing server determines whether the alternative query candidate violates the rule by determining whether data scheduled to be generated based on the database by the alternative query candidate complies with the rule. When the alternative query candidate does not violate the rule, the data processing server proposes the alternative query candidate as an alternative query.