Inventor
IYER BALAKRISHNA RAGMAVENDRA
US8 patents
Patents
8 patentsUS5832477ANov 3, 1998
Method and apparatus for reordering complex SQL queries containing inner and outer join operations
IBM71 citations96
US5724568AMar 3, 1998
Reordering complex SQL queries containing inner and outer join operations using hypergraphs and required sets
IBM31 citations96
US5701454ADec 23, 1997
Simplification of SQL queries using generalized inference propagation and generalized transitive closure
IBM48 citations96
US5687362ANov 11, 1997
Enumerating projections in SQL queries containing outer and full outer joins in the presence of inner joins
IBM75 citations96
US5680603AOct 21, 1997
Method and apparatus for reordering complex SQL queries containing inner and outer join operations
IBM35 citations96
US5855012ADec 29, 1998
Simplification of SQL queries using generalized inference propagation and generalized transitive closure
IBM24 citations92
US5752017AMay 12, 1998
Method and apparatus for executing complex SQL queries using projection operations
IBM28 citations92
US5701455ADec 23, 1997
Method and apparatus for reordering complex SQL queries using a modified generalized outer join operator
IBM21 citations92