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Chapter 5. Analyzing Data with Microsoft... > Understanding Relational and Nonrela...

Understanding Relational and Nonrelational Data

Before you start analyzing data with Access, you need to understand the differences between nonrelational data and relational data.

Nonrelational data is often a list of row-and-column data records. The data is self-contained and does not rely on other data sources or data tables to convey all the facts about itself. An example of nonrelational data is the information in the rows in an Excel worksheet. Usually most, if not all, of the facts about the data in an Excel worksheet are included on the worksheet itself. See Figure 5-1 for an example of nonrelational data.


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