These definitions remain static until the cube is rebuilt. However, the reason for a cube's speed is that all its aggregations and hierarchies are pre-built.
What are cube data sources?Ī cube data source is a data source in which hierarchies and aggregations have been created by the cube's designer in advance.Ĭubes are very powerful and can return information very quickly, often much more quickly than a relational data source. Note: Cube data sources are supported only for Tableau Desktop on Windows-not for the Mac. Talk to your database administrator to find out if this is an option. In many cases there are alternative approaches that you can use to compensate for the unavailability of these features with cube data sources, but you may also have the option to connect directly to a relational database that was used as the source for a cube data source. This topic describes these differences, and also identifies some Tableau features that are not available when you connect to a cube data source. Cube data sources (also known as multidimensional or OLAP data sources) have certain characteristics that differentiate them from relational data sources when you work with them in Tableau.
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