KeyColumns Properties for dimensions in Visual Studio BI

The KeyColumns property contains one or more columns that represent the key of the attribute. In this lesson, you create a key combination for the city and State properties. A composite key may be helpful when you need to uniquely identify a property. For example, when you define an attribute relationship later in this tutorial, the city attribute must uniquely determine the state/province property. However, some cities may have duplicate names in different provinces. To do this, you create a key combination of the Stateprovincename and city columns of the cities attribute. (The purpose of the definition is to make the property unique, and its order in the key column determines the sort order in the browser)

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KeyColumnsproperty contains one or more columns that represent the key of the attribute. In this lesson, you will" City and county " and the" Province / City / Autonomous Region " property to create a composite key. A composite key may be helpful when you need to uniquely identify a property. For example, when you define attribute relationships later in this tutorial," City and county " property must uniquely determine" Province / City / Autonomous Region " property. However, in different provinces/Some cities may have duplicate names. To do this, you create a" City and county " property of Stateprovincenameand the Citya key combination of columns. (The purpose of the definition is to make the property unique, and its order in the key column determines the sort order in the browser)

KeyColumns Properties for dimensions in Visual Studio BI