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.
Patent No.:
Date of Patent:
Aug. 25, 2026
Filed:
Sep. 05, 2024
Huawei Cloud Computing Technologies Co., Ltd., Guizhou, CN;
Gang Xiong, Hangzhou, CN;
Lixun Peng, Hangzhou, CN;
Huawei Cloud Computing Technologies Co., Ltd., Guizhou, CN;
Abstract
A node switchover method is provided, including: A source database nod executes a first query command. Then, the source database node sends target data to a destination database node, where the target data is data for executing a second query command in an execution result of the first query command. Next, the destination database node executes the second query command by using the target data. In the method, some complex operations implemented for node switchover sink to a database node, so that a routing node at which middleware is located does not need to identify a query statement, record a transaction state in real time, or cache a large quantity of query commands that change operation context. This avoids consuming more processor and memory resources of the routing node, reduces costs and overheads of the routing node, and ensures service performance.