Patents by Inventor Yang Ren

Yang Ren 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).

  • Method and apparatus for determining SQL execution plan
    Patent number: 10901976
    Abstract: A method and an apparatus for determining a structured query language (SQL) execution plan are provided to optimize determining of the SQL execution plan and improve execution efficiency of the SQL execution plan. The SQL execution plan corresponds to at least one relation table. During an Nth iteration, the method includes obtaining a first iteration parameter generated after a first plan tree is executed on the at least one relation table during an (N?1)th iteration, where N is a natural number greater than 1, establishing a second plan tree according to the first iteration parameter, and determining the first plan tree or the second plan tree as the SQL execution plan when a difference between the second plan tree and the first plan tree is not greater than a first threshold.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: January 26, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Huijun Liu, Yang Ren, Maozeng Li, Feng Han
  • Method and Apparatus for Determining SQL Execution Plan
    Publication number: 20170242884
    Abstract: A method and an apparatus for determining a structured query language (SQL) execution plan are provided to optimize determining of the SQL execution plan and improve execution efficiency of the SQL execution plan. The SQL execution plan corresponds to at least one relation table. During an Nth iteration, the method includes obtaining a first iteration parameter generated after a first plan tree is executed on the at least one relation table during an (N?1)th iteration, where N is a natural number greater than 1, establishing a second plan tree according to the first iteration parameter, and determining the first plan tree or the second plan tree as the SQL execution plan when a difference between the second plan tree and the first plan tree is not greater than a first threshold.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 24, 2017
    Inventors: Huijun Liu, Yang Ren, Maozeng Li, Feng Han
  • Electrically addressable liquid dispenser
    Patent number: 7715699
    Abstract: An electrically actuated liquid dispenser, an electrically addressable liquid dispenser and an electronic device are described.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: May 11, 2010
    Assignee: Avago Technologies Wireless IP (Singapore) Pte. Ltd.
    Inventors: Kristina L. Lamers, Patrick Chiang, Roger Flynn, Yang-ren Rau, Beth L. Pruitt, Aikaterina Ioakeimidi