Histogram synthesis modeler for a database query optimizer

The invention provides a mechanism for using statistics, in connection with various database query cost modeling techniques, to more accurately estimate the number of rows and UECs that will be produced by relational operators and predicates in database systems. The ability to accurately estimate th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CELIS PEDRO, LESLIE HARRY A, SHAK DIANA L, FARRAR CHRISTOPHER M
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
Online-Zugang:	Volltext bestellen
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