Inventor
JAKOBSSON HAKAN
US33 patents
⚠️ This page may combine multiple inventors who share the name “JAKOBSSON HAKAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ORACLE CORP
20 patentsUS6144957ANov 7, 2000
Method and apparatus for using incompatible types of indexes to process a single query
ORACLE CORP133 citations99
US5963932AOct 5, 1999
Method and apparatus for transforming queries
ORACLE CORP193 citations99
US5848408ADec 8, 1998
Method for executing star queries
ORACLE CORP173 citations99
US5924088AJul 13, 1999
Index selection for an index access path
ORACLE CORP102 citations98
US5822748AOct 13, 1998
Group by and distinct sort elimination using cost-based optimization
ORACLE CORP96 citations98
US5899988AMay 4, 1999
Bitmapped indexing with high granularity locking
ORACLE CORP137 citations97
US5974408AOct 26, 1999
Method and apparatus for executing a query that specifies a sort plus operation
ORACLE CORP87 citations96
US5907297AMay 25, 1999
Bitmap index compression
ORACLE CORP45 citations96
US5903888AMay 11, 1999
Method and apparatus for using incompatible types of indexes to process a single query
ORACLE CORP47 citations96
US5884307AMar 16, 1999
Updating bitmapped indexes
ORACLE CORP59 citations96
US6141656AOct 31, 2000
Query processing using compressed bitmaps
ORACLE CORP83 citations95
US6067540AMay 23, 2000
Bitmap segmentation
ORACLE CORP66 citations95
US7092931B1Aug 15, 2006
Methods and systems for database statement execution plan optimization
ORACLE CORP31 citations92
US6266662B1Jul 24, 2001
Bitmap segmentation
ORACLE CORP26 citations92
US6195656B1Feb 27, 2001
Bitmap segmentation
ORACLE CORP29 citations92
US6081800AJun 27, 2000
Creating bitmaps from multi-level identifiers
ORACLE CORP45 citations92
US5963935AOct 5, 1999
Combining bitmaps within a memory limit
ORACLE CORP48 citations92
US5819256AOct 6, 1998
Method and apparatus for processing count statements in a database system
ORACLE CORP42 citations92
US5732258AMar 24, 1998
Method and apparatus for efficiently evaluating exists and not exists equivalent subqueries
ORACLE CORP30 citations91
US6205442B1Mar 20, 2001
Bitmap index compression
ORACLE CORP12 citations73
ORACLE INT CORP
8 patentsUS7213012B2May 1, 2007
Optimizer dynamic sampling
ORACLE INT CORP65 citations97
US6965891B1Nov 15, 2005
Method and mechanism for partition pruning
ORACLE INT CORP53 citations96
US6615206B1Sep 2, 2003
Techniques for eliminating database table joins based on a join index
ORACLE INT CORP61 citations95
US7167852B1Jan 23, 2007
Systems and methods for increasing allowable join orders in query optimization
ORACLE INT CORP35 citations93
US6957211B1Oct 18, 2005
Query optimizer cost model
ORACLE INT CORP51 citations89
US9336275B2May 10, 2016
Hash join using collaborative parallel filtering in intelligent storage with offloaded bloom filters
ORACLE INT CORP8 citations82
US7756853B2Jul 13, 2010
Frequent itemset counting using subsets of bitmaps
ORACLE INT CORP2 citations62
US7324985B2Jan 29, 2008
Methods and systems for database statement execution plan optimization
ORACLE INT CORP2 citations62