Patents by Inventor Xianming DOU

Xianming DOU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System, method, and apparatus for querying a database
    Patent number: 11789957
    Abstract: A database system as well as a method and an apparatus for querying a database are disclosed herein. In one embodiment, a system comprises a master database, at least one slave database, and a query processing unit. The master database has a data connection with the slave database, and the slave database has a data connection with the query processing unit. The query processing unit is configured to split a query request into query operation instructions having non-overlapping query ranges, send the split query operation instructions to the same or different slave databases to perform the query operations, and return the query results. The disclosed embodiments improve query efficiency.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: October 17, 2023
    Assignee: ALIBABA GROUP HOLDING LIMITED
    Inventors: Guangzhou Zhang, Xiaobin Lin, Xiaojian Fan, Xianming Dou, Wenjing Zeng, Zhengzhong Zhou, Liangchun Xiong, Wenjie Zhang
  • SYSTEM, METHOD, AND APPARATUS FOR QUERYING A DATABASE
    Publication number: 20210097075
    Abstract: A database system as well as a method and an apparatus for querying a database are disclosed herein. In one embodiment, a system comprises a master database, at least one slave database, and a query processing unit. The master database has a data connection with the slave database, and the slave database has a data connection with the query processing unit. The query processing unit is configured to split a query request into query operation instructions having non-overlapping query ranges, send the split query operation instructions to the same or different slave databases to perform the query operations, and return the query results. The disclosed embodiments improve query efficiency.
    Type: Application
    Filed: December 25, 2018
    Publication date: April 1, 2021
    Inventors: Guangzhou ZHANG, Xiaobin LIN, Xiaojian FAN, Xianming DOU, Wenjing ZENG, Zhengzhong ZHOU, Liangchun XIONG, Wenjie ZHANG