Identify the Statement Below That Is False with Regards to Basic

question 29

Multiple Choice

Identify the statement below that is false with regards to basic requirements of a relational database model.

• A)Primary keys can be null.
• B)Foreign keys,if not null,must have values that correspond to the value of a primary key in another table.
• C)All non-key attributes in a table should describe a characteristic about the object identified by the primary key.
• D)Every column in a row must be single-valued.

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Definitions:

Direct Labor-Hour

A measure of the amount of time spent by workers who are directly involved in the production process of creating goods or services.

Merchandising Firm

A type of business that purchases finished products and sells them to consumers without altering the form of the goods.

Merchandise Inventory

Items and merchandise that are kept by a business with the intention of selling them to consumers.

Selling Expenses

Costs incurred directly from the selling of products or services, such as advertising and sales staff salaries.