Inventor
ZELLER HANSJORG
US20 patents
⚠️ This page may combine multiple inventors who share the name “ZELLER HANSJORG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TANDEM COMPUTERS INC
6 patentsUS5822747AOct 13, 1998
System and method for optimizing database queries
TANDEM COMPUTERS INC278 citations98
US5819255AOct 6, 1998
System and method for database query optimization
TANDEM COMPUTERS INC198 citations98
US5724570AMar 3, 1998
Method and apparatus for a complete SQL subquery elimination process
TANDEM COMPUTERS INC104 citations98
US5511190AApr 23, 1996
Hash-based database grouping system and method
TANDEM COMPUTERS INC269 citations98
US6021405AFeb 1, 2000
System and method for optimizing database queries with improved performance enhancements
TANDEM COMPUTERS INC125 citations95
US5717911AFeb 10, 1998
Relational database system and method with high availability compliation of SQL programs
TANDEM COMPUTERS INC167 citations94
HEWLETT PACKARD DEVELOPMENT CO
5 patentsUS7818297B2Oct 19, 2010
System and method for refreshing a table using epochs
HEWLETT PACKARD DEVELOPMENT CO53 citations96
US6604102B2Aug 5, 2003
System and method for performing database operations on a continuous stream of tuples
HEWLETT PACKARD DEVELOPMENT CO59 citations96
US10430411B2Oct 1, 2019
Incrementally updating statistics
HEWLETT PACKARD DEVELOPMENT CO1 citations62
US8380699B2Feb 19, 2013
System and method for optimizing queries
HEWLETT PACKARD DEVELOPMENT CO3 citations61
US7765531B2Jul 27, 2010
Systems and methods for handling multiple static query modules for distinct environments
HEWLETT PACKARD DEVELOPMENT CO6 citations54
COMPAQ COMPUTER CORP
2 patentsUS6339772B1Jan 15, 2002
System and method for performing database operations on a continuous stream of tuples
COMPAQ COMPUTER CORP111 citations97
US6438741B1Aug 20, 2002
System and method for eliminating compile time explosion in a top down rule based system using selective sampling
COMPAQ COMPUTER CORP95 citations96