Examlex
The "____" characteristic of a primary key states the following: The PK must uniquely identify each entity instance.A primary key must be able to guarantee unique values.It cannot contain nulls.
Manufacturing
The process of producing goods and products in large quantities, typically utilizing machinery and labor in factories.
Eli Whitney
Known for inventing the cotton gin, a revolutionary device that greatly impacted the agricultural and industrial sectors by dramatically increasing the efficiency of cotton harvesting.
Pure Service
Describes businesses or offerings that are based entirely on providing intangible services, rather than physical products.
Counseling
A professional service providing advice, guidance, and support to individuals or groups to improve their well-being and resolve personal or psychological challenges.
Q7: Which query will list all the rows
Q10: _ relationships can be implemented by creating
Q26: A _ key can be described as
Q27: Because _ e-commerce integrates business processes among
Q54: The existence of a(n) _ relationship indicates
Q55: The _ is the result of adding
Q61: In the original Chen model, each attribute
Q64: The _ guarantees that if a portion
Q82: _ yields only the rows that appear
Q85: The _ catalog can be described as