Patents by Inventor Susan Marie Kotsovolos

Susan Marie Kotsovolos 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 providing schema evolution without recompilation
    Patent number: 6216137
    Abstract: A method and apparatus that allow schema version evolution to occur without requiring applications that expect older schema versions to be recompiled is provided. According to one aspect of the invention, each application that requests data is supplied the data in the format that the application expects. To supply the data in the expected format, a mechanism is provided for tracking the evolution of data types without losing information. In addition, mechanisms are provided for determining the format expected by the application and the format in which the data is currently stored. A mechanism is also provided for converting the data from the stored format to the expected format when the two formats do not match. A data migration strategy is described in which data is gradually migrated to newer formats when the data is updated by applications that expect a more recent format than the format in which the data is currently stored.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: April 10, 2001
    Assignee: Oracle Corporation
    Inventors: Tin Anh Nguyen, Susan Marie Kotsovolos, Srinath Krishnaswamy
  • Method and apparatus for providing schema evolution without recompilation
    Patent number: 6119130
    Abstract: A method and apparatus that allow schema version evolution to occur without requiring applications that expect older schema versions to be recompiled is provided. According to one aspect of the invention, each application that requests data is supplied the data in the format that the application expects. To supply the data in the expected format, a mechanism is provided for tracking the evolution of data types without losing information. In addition, mechanisms are provided for determining the format expected by the application and the format in which the data is currently stored. A mechanism is also provided for converting the data from the stored format to the expected format when the two formats do not match. A data migration strategy is described in which data is gradually migrated to newer formats when the data is updated by applications that expect a more recent format than the format in which the data is currently stored.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: September 12, 2000
    Assignee: Oracle Corporation
    Inventors: Tin Anh Nguyen, Susan Marie Kotsovolos, Srinath Krishnaswamy