Describe the Use of Nulls in a Database

question 19

Essay

Describe the use of nulls in a database.

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Definitions:

Indirection Operator

In programming, an operator that allows access to the value pointed to by a pointer variable; typically denoted by the asterisk (*) in C and C++.

Integer Array

A collection of integers stored in contiguous memory locations, accessible by indexing.

Pointer

A programming construct that stores the memory address of another value or variable.

Indirection Operator

In programming languages like C, it's the '*' operator used to dereference pointer variables, accessing the value at the pointer's address.