When Are Nulls Used

question 13

Multiple Choice

When are nulls used?

• A) when a numeric value is zero
• B) when a character value is blank
• C) when a string contains a space
• D) when a value is inapplicable

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Definitions:

Inventory Account

An inventory account is an account on the balance sheet that represents the value of unsold goods held by a company.

Perpetual Inventory System

A method of inventory management where updates to inventory records are made in real-time following every transaction.

Cost of Goods Sold

Cost of goods sold (COGS) represents the direct costs attributable to the production of the goods sold by a company.

Periodic Inventory System

An inventory system that updates inventory balances at the end of a period, relying on physical counts to measure stock levels.