Inventor
SUBRAMANIAN NARAYANA
US4 patents
Patents
4 patentsUS6546381B1Apr 8, 2003
Query optimization system and method
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Schema mapping system and method
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US6496828B1Dec 17, 2002
Support for summary tables in a heterogeneous database environment
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US6915305B2Jul 5, 2005
Restructuring view maintenance system and method
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