June 2009
Beginner to intermediate
428 pages
9h 48m
German
Content preview from Data Mining mit Microsoft SQL Server
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24.1. Sprachelemente von DMX
In den nachfolgenden Abschnitten sind die wichtigsten Sprachelemente von DMX tabellarisch zusammengefasst und beschrieben. Die praktische Verwendung von DMX folgt direkt im Anschluss an diese Übersicht in Form von zahlreichen erläuterten Codebeispielen.
24.1.1. Operatoren
Mit den Operatoren von DMX können Sie arithmetische, logische, Vergleichs- und unäre Operationen durchführen. Mit den Operatoren können Sie beispielsweise nach Werten oder Objekten suchen, die mit einer Bedingung übereinstimmen oder eine Entscheidung zwischen zwei Werten oder Ausdrücken implementieren. Tabelle 24.1 führt die in DMX vorhandenen Operatoren nach deren Typen sortiert auf.
| Typ | Operator | Beschreibung |
|---|---|---|
| Arithmetische ... |
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