Progress
Language Tutorial
for Windows
Defining Fields
A field is a particular item of information that helps describe the subject of a table. For example, the name of a customer, the address, and the credit limit are information items that help define a customer.
As an example of field properties, access the Cust-Num field property sheet of the Customer table as shown in Figure 4–5.
Figure 4–5: Field Properties Sheet
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Two properties make up the essential definition of a field object: the field name and the data type.
Field names may be up to 32 characters long and can consist of alphabetic characters (A–Z, a–z), digits (0–9), and the special characters $, &, #, %, -, and _. A field name must begin with an alphabetic character.
The data type defines what type of data a field can store. Table 4–3 describes the Progress data types.
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