Which Command Can Be Used to Determine Whether or Not

question 46

Multiple Choice

Which command can be used to determine whether or not a column is allowed to contain a NULL value?​

• A) ​DISPLAY_CONSTRAINTS
• B) ​DESCRIBE
• C) ​DEFINED_CONSTRAINTS
• D) ​DISPLAY

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Definitions:

Prices

The amount of money required to purchase a good, service, or asset.

Goods

Goods are tangible items that satisfy human wants or needs, which can be transferred from one person to another and include consumer products, commodities, and durable goods.

Indifference Schedule

A graphical representation in economics that shows combinations of goods among which a consumer is indifferent.

Unit of Y

A hypothetical unit used in economic models to represent output or goods produced.