When Is It Appropriate to Use an Input Mask for a Field

question 21

Essay

When is it appropriate to use an input mask for a field value? List two examples of fields for which a database designer might use an input mask.

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Definitions:

Real Number

Any value that represents a continuous quantity along a line, including both rational and irrational numbers.

True Inequality

A statement of inequality that is valid for the values it involves.

Real Number Line

A line that graphically represents all possible real numbers, both positive and negative, including integers and fractions.

Ascending Order

Arranging numbers or other elements in a sequence from the smallest to the largest value.