Patents by Inventor David C. Wheat

David C. Wheat 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 database query decomposition
    Patent number: 6816854
    Abstract: An improved system for database query processing by means of “query decomposition” intercepts database queries prior to processing by a database management system (“DBMS”). The system decomposes at least selected queries to generate multiple subqueries for application, in parallel, to the DBMS, in lieu of the intercepted query. Responses by the DBMS to the subqueries are assembled by the system to generate a final response. The system also provides improved methods and apparatus for storage and retrieval of records from a database utilizing the DBMS's cluster storage and index retrieval facilitates, in combination with a smaller-than-usual hash bucket size.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: November 9, 2004
    Assignee: Sun Microsystems, Inc.
    Inventors: David Reiner, Jeffrey M. Miller, David C. Wheat
  • Method and apparatus for data access in multiprocessor digital data processing systems
    Publication number: 20020032676
    Abstract: An improved system for database query processing by means of “query decomposition” intercepts database queries prior to processing by a database management system (“DBMS”). The system decomposes at least selected queries to generate multiple subqueries for application, in parallel, to the DBMS, in lieu of the intercepted query. Responses by the DBMS to the subqueries are assembled by the system to generate a final response. The system also provides improved methods and apparatus for storage and retrieval of records from a database utilizing the DBMS's cluster storage and index retrieval facilitates, in combination with a smaller-than-usual hash bucket size.
    Type: Application
    Filed: June 8, 2001
    Publication date: March 14, 2002
    Inventors: David Reiner, Jeffrey M. Miller, David C. Wheat
  • Apparatus and method for decomposing database queries for database management system including multiprocessor digital data processing system
    Patent number: 6289334
    Abstract: An improved system for database query processing by means of “query decomposition” intercepts database queries prior to processing by a database management system (“DBMS”). The system decomposes at least selected queries to generate multiple subqueries for application, in parallel, to the DBMS, in lieu of the intercepted query. Responses by the DBMS to the subqueries are assembled by the system to generate a final response. The system also provides improved methods and apparatus for storage and retrieval of records from a database utilizing the DBMS's cluster storage and index retrieval facilitates, in combination with a smaller-than-usual hash bucket size.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: September 11, 2001
    Assignee: Sun Microsystems, Inc.
    Inventors: David Reiner, Jeffrey M. Miller, David C. Wheat
  • Apparatus and method for decomposing database queries for database management system including multiprocessor digital data processing system
    Patent number: 5742806
    Abstract: An improved system for database query processing by means of "query decomposition" intercepts database queries prior to processing by a database management system ("DBMS"). The system decomposes at least selected queries to generate multiple subqueries for application, in parallel, to the DBMS, in lieu of the intercepted query. Responses by the DBMS to the subqueries are assembled by the system to generate a final response. The system also provides improved methods and apparatus for storage and retrieval of records from a database utilizing the DBMS's cluster storage and index retrieval facilitates, in combination with a smaller-than-usual hash bucket size.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: April 21, 1998
    Assignee: Sun Microsystems, Inc.
    Inventors: David Reiner, Jeffrey M. Miller, David C. Wheat