Which of the Following Statements About Foreign Keys Is Not

question 25

Short Answer

Which of the following statements about foreign keys is not true?
A. A foreign key can be a combination of attributes
B. A foreign key cannot be NULL
C. Foreign key must match values of the linked primary key
D. Foreign keys support a defined association

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Definitions:

Nineteenth Century

The period from January 1, 1801, to December 31, 1900, characterized by significant industrial, cultural, and political changes worldwide.

Fourteenth Amendment

An amendment to the U.S. Constitution, adopted in 1868, that granted citizenship to all persons born or naturalized in the United States, including former slaves, and provided equal protection under the laws.

Literacy Requirements

Mandates or conditions set by authorities requiring individuals to demonstrate a certain level of reading and writing proficiency, often for voting or employment purposes.

United States V. Wong Kim Ark

A landmark Supreme Court case in 1898 that established that children born in the United States to foreign parents are citizens under the 14th Amendment.