​Which of the Following Statements About Creating Constraints Is Incorrect?​

question 123

Multiple Choice

​Which of the following statements about creating constraints is incorrect?​

• A) ​If a constraint applies to more than one column,the constraint must be created at the table level.
• B) ​Using the column level approach,the definition of the constraint is included as part of the column definition.
• C) ​When you create constraints at the column level,the constraint being created applies to the column specified.
• D) ​The NOT NULL constraint can be created at either the column level or the table level.

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Definitions:

Chinese Law

A legal system derived from civil law, heavily influenced by Soviet Socialist law, that governs the People's Republic of China.

Minors

Individuals under the legal age of majority, typically under 18 years old, not yet granted the full legal rights of an adult.

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Legal agreements between two or more parties that create mutual obligations enforceable by law.

Contract For A Necessary

An agreement to supply goods or services that are essential for an individual's health or welfare, often enforceable even when entered by minors.