Data on a PDW

Taking a closer look at how data is stored on the PDW, you’ll better understand how this architecture yields the data access speeds it delivers. Looking at Figure 51.3, we will define a typical star schema sales database that contains sales facts (measures) such as Sales Units (A), Sales Amounts (B), and Sales Returns (C). In addition, this star schema has three dimensions: a Product hierarchical dimension, a Geography hierarchical dimension, and a Time dimension. Each fact in the fact tables is identified by all three of these dimensions.

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FIGURE 51.3 Sales data facts (measures) and dimensions on the PDW.

Now, as you can also ...

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