What Database Rule States That No Field That Is Part

question 38

Multiple Choice

What database rule states that no field that is part of the primary key may accept null values?

• A) legal-values integrity
• B) structural integrity
• C) referential integrity
• D) entity integrity

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Definitions:

Risk-free Asset

A financial instrument that is considered to have minimal risk of financial loss, such as government bonds.

Intercept

A term in mathematics and economics indicating the value where a function or line crosses an axis on a graph.

Budget Line

A budget line represents the combinations of two goods that a consumer can purchase with a given income and prices, illustrating the trade-off between the two goods.

Risk-free Asset

A Risk-free Asset is an investment with a certain return, with no risk of financial loss, often exemplified by government bonds.