公开(公告)号：US10534771B2

公开(公告)日：2020-01-14

申请号：US15411043

申请日：2017-01-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenfeng Li ,  Zhongchu Zhu ,  Jianxun Zhang

IPC: G06F16/2453

Abstract: The present invention provides a database access method, where the method includes the following steps: receiving an access request input by a client, where the access request includes at least one command statement; performing rule matching between the command statement included in the access request and a rule in a preset rule set, and performing transformation processing on a statement that is included in the access request and that matches the rule, so as to generate a sinking statement that satisfies an execution requirement of a data source, where the sinking statement is a statement that is delivered to a database and executed by the data source; and transmitting the sinking statement to the database to which the sinking statement points. The present invention further provides a database access apparatus and a database system to which the foregoing method is applied.

公开(公告)号：US20180225353A1

公开(公告)日：2018-08-09

申请号：US15943348

申请日：2018-04-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenfeng Li ,  Li Yao ,  Wei Zhang

IPC: G06F17/30

CPC classification number: G06F16/278 ,  G06F16/2272 ,  G06F16/2282 ,  G06F16/24534 ,  G06F16/2471

Abstract: Embodiments of the present invention relate to the field of storage technologies, and provide a distributed database processing method. A database processing device receives an access request; obtains, from a partition routing table of the data table according to the query index field and the value of the query index field, partition information and a value that correspond to the query index field; and sends, according to the partition information and the value of the partition information that correspond to the query index field and the value of the query index field, the access request to a database corresponding to the partition information and the value of the partition information.

公开(公告)号：US20170132280A1

公开(公告)日：2017-05-11

申请号：US15411043

申请日：2017-01-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenfeng Li ,  Zhongchu Zhu ,  Jianxun Zhang

IPC: G06F17/30

Abstract: The present invention provides a database access method, where the method includes the following steps: receiving an access request input by a client, where the access request includes at least one command statement; performing rule matching between the command statement included in the access request and a rule in a preset rule set, and performing transformation processing on a statement that is included in the access request and that matches the rule, so as to generate a sinking statement that satisfies an execution requirement of a data source, where the sinking statement is a statement that is delivered to a database and executed by the data source; and transmitting the sinking statement to the database to which the sinking statement points. The present invention further provides a database access apparatus and a database system to which the foregoing method is applied.