Which of the Following Is False Regarding a Well-Structured Relational

question 68

Multiple Choice

Which of the following is false regarding a well-structured relational database?

• A)A foreign key cannot be null.
• B)A primary key cannot be null.
• C)Every column in a row must be single valued.
• D)All nonkey attributes in a table must describe a characteristic of the object identified by the primary key.

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Definitions:

Repurchase

The action of a company buying back its own shares from the marketplace, reducing the amount of outstanding stock.

Initial Investment

The original sum of money or capital used to purchase assets or start an investment portfolio at the outset.

Short 150 Shares

The action of borrowing 150 shares of a stock with the aim of selling them in the hope that the stock price will decline, allowing for profit upon repurchasing the shares at a lower price.

Initial Margin

The portion of the purchase price that an investor must deposit when buying securities on margin, serving as a form of collateral.