Inventor
MALKEMUS TIMOTHY R
US24 patents
⚠️ This page may combine multiple inventors who share the name “MALKEMUS TIMOTHY R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
21 patentsUS5619692AApr 8, 1997
Semantic optimization of query order requirements using order detection by normalization in a query compiler system
IBM103 citations98
US7080081B2Jul 18, 2006
Multidimensional data clustering scheme for query processing and maintenance in relational databases
IBM109 citations96
US7236974B2Jun 26, 2007
System and method for a multi-level locking hierarchy in a database with multi-dimensional clustering
IBM57 citations95
US5745746AApr 28, 1998
Method for localizing execution of subqueries and determining collocation of execution of subqueries in a parallel database
IBM89 citations95
US5226158AJul 6, 1993
Method and apparatus for maintaining referential integrity within a relational database
IBM58 citations95
US5630124AMay 13, 1997
System and method for assuring atomicity of distributed update requests in a parallel database
IBM54 citations93
US8010766B2Aug 30, 2011
Increasing buffer locality during multiple table access operations
IBM43 citations92
US7765211B2Jul 27, 2010
System and method for space management of multidimensionally clustered tables
IBM30 citations92
US5504886AApr 2, 1996
System and method for applying user supplied relation definitions to application files for a relational database
IBM46 citations92
US5386557AJan 31, 1995
Enforcement of referential constraints in a database system
IBM78 citations92
US5446858AAug 29, 1995
Apparatus and method for transferring information in blocks from a database to a memory
IBM35 citations90
US5089985AFeb 18, 1992
System and method for performing a sort operation in a relational database manager to pass results directly to a user without writing to disk
IBM42 citations87
US7167878B2Jan 23, 2007
System and method for identifying and maintaining base table data blocks requiring deferred incremental integrity maintenance
IBM10 citations79
US11036737B2Jun 15, 2021
Partitioned bloom filter merge for massively parallel processing clustered data management
IBM2 citations72
US10719512B2Jul 21, 2020
Partitioned bloom filter merge for massively parallel processing clustered data management
IBM3 citations72
US6925463B2Aug 2, 2005
Method and system for query processing by combining indexes of multilevel granularity or composition
IBM7 citations72
USRE37965EJan 7, 2003
Method for localizing execution or subqueries and determining collocation of execution of subqueries in a parallel database
IBM9 citations72
US7836036B2Nov 16, 2010
System and method for estimating distances between multiple index-driven scan operations
IBM5 citations63
US9792341B2Oct 17, 2017
Database query processing using horizontal data record alignment of multi-column range summaries
IBM1 citations51
US7937541B2May 3, 2011
Speed selective table scan operation
IBM1 citations50
US10289707B2May 14, 2019
Data skipping and compression through partitioning of data
IBM0 citations41