Patents by Inventor Yujun Wang

Yujun Wang 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).

  • Publication number: 20080097996
    Abstract: A method and apparatus for capturing database system workload and replaying that workload in a database system is provided. According to one aspect, in order to subject a test database system to the same workload to which the production database system actually would be subjected, a database server in the production system captures and records workload that the database server receives from external entities. This captured workload is processed. Processes external to a database server in the test database system send the processed workload to that database server. As a result, the test database system is subjected to the same workload to which the production database system originally was subjected. The foregoing technique permits a database administrator to determine how the production database system will fare if the difference that is present in the test database system is introduced into the production database system.
    Type: Application
    Filed: May 3, 2007
    Publication date: April 24, 2008
    Applicant: Oracle International Corporation
    Inventors: Karl Dias, Leonidas Galanis, Jonathan Klein, Venkateshwaran Venkataramani, Yujun Wang
  • Publication number: 20080097960
    Abstract: A method and apparatus for capturing database system workload and replaying that workload in a database system is provided. According to one aspect, in order to subject a test database system to the same workload to which the production database system actually would be subjected, a database server in the production system captures and records workload that the database server receives from external entities. This captured workload is processed. Processes external to a database server in the test database system send the processed workload to that database server. As a result, the test database system is subjected to the same workload to which the production database system originally was subjected. The foregoing technique permits a database administrator to determine how the production database system will fare if the difference that is present in the test database system is introduced into the production database system.
    Type: Application
    Filed: May 3, 2007
    Publication date: April 24, 2008
    Inventors: Karl Dias, Leonidas Galanis, Jonathan Klein, Venkateshwaran Venkataramani, Yujun Wang
  • Publication number: 20080097961
    Abstract: A method and apparatus for capturing database system workload and replaying that workload in a database system is provided. According to one aspect, in order to subject a test database system to the same workload to which the production database system actually would be subjected, a database server in the production system captures and records workload that the database server receives from external entities. This captured workload is processed. Processes external to a database server in the test database system send the processed workload to that database server. As a result, the test database system is subjected to the same workload to which the production database system originally was subjected. The foregoing technique permits a database administrator to determine how the production database system will fare if the difference that is present in the test database system is introduced into the production database system.
    Type: Application
    Filed: May 3, 2007
    Publication date: April 24, 2008
    Applicant: Oracle International Corporation
    Inventors: Karl Dias, Leonidas Galanis, Jonathan Klein, Venkateshwaran Venkataramani, Yujun Wang
  • Publication number: 20080097995
    Abstract: A method and apparatus for capturing database system workload and replaying that workload in a database system is provided. According to one aspect, in order to subject a test database system to the same workload to which the production database system actually would be subjected, a database server in the production system captures and records workload that the database server receives from external entities. This captured workload is processed. Processes external to a database server in the test database system send the processed workload to that database server. As a result, the test database system is subjected to the same workload to which the production database system originally was subjected. The foregoing technique permits a database administrator to determine how the production database system will fare if the difference that is present in the test database system is introduced into the production database system.
    Type: Application
    Filed: May 3, 2007
    Publication date: April 24, 2008
    Applicant: Oracle International Corporation
    Inventors: Karl Dias, Leonidas Galanis, Jonathan Klein, Venkateshwaran Venkataramani, Yujun Wang, Richard Sarwal, Leng Tan, Graham Wood, Benoit Dageville, Chao Liang, Sanjay Kaluskar
  • Publication number: 20080098003
    Abstract: A method and apparatus for capturing database system workload and replaying that workload in a database system is provided. According to one aspect, in order to subject a test database system to the same workload to which the production database system actually would be subjected, a database server in the production system captures and records workload that the database server receives from external entities. This captured workload is processed. Processes external to a database server in the test database system send the processed workload to that database server. As a result, the test database system is subjected to the same workload to which the production database system originally was subjected. The foregoing technique permits a database administrator to determine how the production database system will fare if the difference that is present in the test database system is introduced into the production database system.
    Type: Application
    Filed: May 3, 2007
    Publication date: April 24, 2008
    Applicant: Oracle International Corporation
    Inventors: Karl Dias, Leonidas Galanis, Jonathan Klein, Venkateshwaran Venkataramani, Yujun Wang
  • Publication number: 20070217447
    Abstract: A method for interworking between a first signaling network and a second signaling network is provided. The first signaling network includes a first signaling point and a signaling transfer point, and the second signaling network includes a second signaling point, the first signaling network is connected with the second signaling network via an interworking point. The method includes: receiving by the interworking point a first signaling point TransFer Prohibited message from the first signaling network; detecting all the links between the interworking point and the first signaling network, if there is any interworking link, dropping the TransFer Prohibited message; otherwise, transmitting a Signaling Unavailable message to the second signaling point. This invention also provides an interworking point of signaling networks and a communication system. In this invention, TFP message in narrowband MTP3 protocol and DUNA message the broadband M3UA protocol are combined for informing the route state.
    Type: Application
    Filed: February 1, 2007
    Publication date: September 20, 2007
    Inventor: Yujun Wang