Inventor
TRUONG TUONG CHANH
US13 patents
Patents
13 patentsUS6996557B1Feb 7, 2006
Method of optimizing SQL queries where a predicate matches nullable operands
IBM109 citations98
US6625593B1Sep 23, 2003
Parallel query optimization strategies for replicated and partitioned tables
IBM133 citations98
US6453314B1Sep 17, 2002
System and method for selective incremental deferred constraint processing after bulk loading data
IBM184 citations98
US6081801AJun 27, 2000
Shared nothing parallel execution of procedural constructs in SQL
IBM269 citations98
US5930795AJul 27, 1999
Supporting dynamic tables in SQL query compilers
IBM151 citations98
US5873075AFeb 16, 1999
Synchronization of SQL actions in a relational database system
IBM190 citations98
US6529896B1Mar 4, 2003
Method of optimizing a query having an existi subquery and a not-exists subquery
IBM122 citations97
US5864840AJan 26, 1999
Evaluation of existential and universal subquery in a relational database management system for increased efficiency
IBM94 citations96
US7076508B2Jul 11, 2006
Method, system, and program for merging log entries from multiple recovery log files
IBM167 citations95
US6032143AFeb 29, 2000
Evaluation of existential and universal subquery in a relational database management system for increased efficiency
IBM73 citations94
US6085189AJul 4, 2000
Database system and method for supporting current of cursor updates and deletes from a select query from one or more updatable tables in single node and MPP environments
IBM38 citations92
US5960426ASep 28, 1999
Database system and method for supporting current of cursor updates and deletes from a select query from one or more updatable tables in single node and mpp environments
IBM39 citations92
US7552119B2Jun 23, 2009
Apparatus and method for skipping XML index scans with common ancestors of a previously failed predicate
IBM6 citations62