Inventor
CHEN YAO-CHING STEPHEN
US23 patents
⚠️ This page may combine multiple inventors who share the name “CHEN YAO-CHING STEPHEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
19 patentsUS5930795AJul 27, 1999
Supporting dynamic tables in SQL query compilers
IBM151 citations98
US7437374B2Oct 14, 2008
Efficient XML schema validation of XML fragments using annotated automaton encoding
IBM54 citations96
US6385603B1May 7, 2002
Joined table expression optimization by query transformation
IBM55 citations94
US7124137B2Oct 17, 2006
Method, system, and program for optimizing processing of nested functions
IBM24 citations92
US6421663B1Jul 16, 2002
Optimization of joined table expressions by extended access path selection
IBM38 citations91
US11042650B2Jun 22, 2021
Sargable query-predicate evaluation for encrypted databases
IBM16 citations90
US6829616B2Dec 7, 2004
Method, system, and program for implementing a database trigger
IBM24 citations90
US7890479B2Feb 15, 2011
Efficient XML schema validation of XML fragments using annotated automaton encoding
IBM7 citations84
US7346609B2Mar 18, 2008
Streaming XPath algorithm for XPath value index key generation
IBM20 citations82
US6643637B2Nov 4, 2003
Method, system, and program for using a fetch request to make data available to an application program
IBM10 citations82
US7685214B2Mar 23, 2010
Order-preserving encoding formats of floating-point decimal numbers for efficient value comparison
IBM9 citations81
US7246115B2Jul 17, 2007
Materialized view signature and efficient identification of materialized view candidates for queries
IBM12 citations81
US7711746B2May 4, 2010
System and method for deploying an SQL procedure
IBM17 citations79
US7243098B2Jul 10, 2007
Method, system, and program for optimizing aggregate processing
IBM9 citations72
US7376646B2May 20, 2008
Cost-based subquery correlation and decorrelation
IBM5 citations60
US11620392B2Apr 4, 2023
Sargable evaluation of queries submitted to an encrypted database
IBM0 citations59
US7580958B2Aug 25, 2009
Supporting multiple versions of a routine
IBM4 citations58
US7840552B2Nov 23, 2010
Cost-based subquery correlation and decorrelation
IBM0 citations50
US7624119B2Nov 24, 2009
Low-overhead built-in timestamp column for relational database systems
IBM0 citations42