June 2009
Beginner to intermediate
428 pages
9h 48m
German
Content preview from Data Mining mit Microsoft SQL Server
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Kapitel 14. Miningmodelle im BIDS abfragen
In diesem Kapitel:
Vorhersagen mit SINGLETON-Abfragen 192
Vorhersagen mit SQL-Abfragen 195
Zusammenfassung 197
Data Mining erlaubt neben dem Finden von Mustern in großen Datenmengen auch das Generieren von Vorhersagen für neue, bis dato unbekannte Daten. Dazu bietet SQL Server Business Intelligence Development Studio zwei Möglichkeiten. Bei Verwendung von so genannten SINGLETON-Abfragen, werden Vorher-sagen für einen einzigen Datensatz, welcher im Rahmen der Abfrage festgelegt wird, generiert. Darüber hinaus besteht die Möglichkeit, für alle Daten, welche aus einer SQL-Abfrage hervorgehen, Werte vorherzusagen. Dieses Kapitel beschreibt diese beiden Möglichkeiten.
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