Method and apparatus for performing an aggregate query in a...

Details Method and apparatus for performing an aggregate query in a... Method and apparatus for performing an aggregate query in a...

G - Physics

06

F

G06F 17/30 (2006.01)

Patent

CA 2228186

In a computer-implemented method for generating a response to an aggregate query request on a source database, a random sample of records is extracted from the source database to generate a sample database. Then an aggregate query is performed on the sample database to generate a sample result, and an estimate of the aggregate query request on the source database is derived from the sample result.

Dans une méthode informatisée permettant de produire une réponse à une interrogation globale sur une base de données source, un échantillon aléatoire d'enregistrements est extrait de la base de données source afin de produire une base de données échantillons. Puis une interrogation globale de base de données échantillons est effectuée afin de produire un résultat échantillon, et une estimation de l'interrogation globale de la base de données source est obtenue à partir du résultat échantillon.

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