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Data Types

The data type is a characteristic you designate for an Access field when you create it. It determines what kind of data can be entered into the field. Data types are determined primarily by the nature of the data and the amount of data that can be stored in a particular field.

The selection of data types and how the different types are variously used will make more sense when you start building tables. All data types receive much more treatment in Chapter 5, “Building Tables.” But I introduce them now because it gives you an excellent idea of the kinds of data you can enter and manipulate in Access.


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