Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6691101 | Database system providing optimization of group by operator over a union all | Steven A. Kirk, Xiqing Li | 2004-02-10 |
| 6341281 | Database system with methods for optimizing performance of correlated subqueries by reusing invariant results of operator tree | Steven A. Kirk, Randall Bello, Jun Rao, Katherine Tsouya Yang | 2002-01-22 |