Referential Integrity Should Be Enforced in a Database with Related

question 68

Multiple Choice

Referential integrity should be enforced in a database with related tables because it

• A) makes the database easier to back up.
• B) helps ensure invalid data is not entered into a table.
• C) makes the database easier to repair.
• D) helps ensure data is automatically updated.

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Definitions:

Additional Cost

Expenses that are not previously planned or accounted for, often arising unexpectedly in the course of an action or project.

Conditional Factor Demand Function

Represents the quantity of an input demanded at each level of output, prices of inputs, and technology, given the firm's optimization behavior.

Optimal Factor Choice

A decision-making process in which a firm determines the most efficient combination of factors of production (labor, capital, etc.) to maximize output or minimize costs.

Weak Axiom of Cost Minimization (WACM)

An economic principle stating that if a set of goods is chosen over another set at the same prices, then the chosen set should not cost more than the other when prices change.