Introduction to Database System An attribute that names or identifies entity instances is a(n): entity. relationship. identifier. attribute. entity. relationship. identifier. attribute. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select data in rows and column from one or more tables? LIST CHOOSE None of these BROWSE SELECT LIST CHOOSE None of these BROWSE SELECT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Updating a database means reorganizing the database all of the listed here revising the file structure modifying or adding record occurrences reorganizing the database all of the listed here revising the file structure modifying or adding record occurrences ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier? Strong entity ID- independent entity Weak entity ID-dependent entity Strong entity ID- independent entity Weak entity ID-dependent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in Boyce-Codd Normal Form (BCNF) if every determinant is a composite key. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents an actual occurrence of an associated generalized entity? Supertype entity Instance entity Subtype entity Archetype entity Supertype entity Instance entity Subtype entity Archetype entity ANSWER DOWNLOAD EXAMIANS APP
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