Question

data type is used when we are aware of exact number of character to be entered in the field.
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Answer 1

Explanation:

Stores strings of letters, numbers, and symbols. Data types CHARACTER ( CHAR ) and CHARACTER VARYING ( VARCHAR ) are collectively referred to as character string types, and the values of character string types are known as character strings.

Answer 2

A key factor in determining the size of your data is the data type you select. ... Commonly used for all real numbers except monetary fields.

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