Patents by Inventor Kenneth K. Luu

Kenneth K. Luu 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).

  • Single-operation on-line schema evolution
    Patent number: 8768978
    Abstract: A method for modifying an original data object in a database using a single command is disclosed. The single command is first validated. Once the command has been validated a ghost data object is created using the new definition. The ghost data object is populated with data from the original object. The transaction log records from the original data object are applied to the ghost data object. The original data object is then locked for exclusive access. The final transaction log records from the original data object are applied to the ghost data object. In the final step the database switches to the new data object. Dependent objects are automatically transformed as part of the same operation.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: July 1, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Carol Jean Pearson, David W. Birdsall, Roberta S. Marton, Emile Roth, John M. Hausman, Kenneth K. Luu
  • SINGLE-OPERATION ON-LINE SCHEMA EVOLUTION
    Publication number: 20090037462
    Abstract: A method for modifying an original data object in a database using a single command is disclosed. The single command is first validated. Once the command has been validated a ghost data object is created using the new definition. The ghost data object is populated with data from the original object. The transaction log records from the original data object are applied to the ghost data object. The original data object is then locked for exclusive access. The final transaction log records from the original data object are applied to the ghost data object. In the final step the database switches to the new data object. Dependent objects are automatically transformed as part of the same operation.
    Type: Application
    Filed: July 30, 2007
    Publication date: February 5, 2009
    Inventors: Carol Jean Pearson, David W. Birdsall, Roberta S. Marton, Emile Roth, John M. Hausman, Kenneth K. Luu