Examlex
Which of the following constraints cannot be added to an existing table with the ADD clause of the ALTER TABLE command?
Intellectual Property
A legal concept that refers to creations of the mind for which exclusive rights are recognized.
787 Dreamliner
A modern, fuel-efficient, wide-body commercial airliner developed by Boeing, known for its innovative use of composite materials and advanced technology.
New Engine Technology
Refers to the latest advancements or innovations in engine design and functionality, aiming to improve performance, efficiency, or environmental impact.
International Operations
Activities and business processes conducted across national borders, involving the production, distribution, marketing, and sales of goods and services in foreign markets.
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