A Null Value in a Column May Indicate That There

question 68

True/False

A null value in a column may indicate that there is an appropriate value for that attribute,but it is unknown.

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Definitions:

Array

A data structure that can store a fixed-size sequential collection of elements of the same type.

Employee Array

A data structure that holds a collection of employee information, structured in such a way that each element of the array represents one employee.

First Structure

The initial definition in a set of related definitions to create complex, composite data types.

Parallel Arrays

Multiple arrays where related data elements of different types are kept in corresponding indices across arrays.