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Chapter 40. Access Essentials > Using Expressions in Database Objects

Using Expressions in Database Objects

In the design of database objects, you may often find yourself writing expressions to carry out particular operations. An expression is a combination of symbols, values, and identifiers that calculate a numeric result, or produce some other type of value. Some of the operators you'll use in expressions include everyday arithmetic operators: + (plus), - (minus), * (multiplication), and / (division). Other operators used in expressions may be less familiar.

Expressions are useful throughout Access in many types of objects. The following are a few examples:


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