Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Attributes Relationships Entities Primary keys Attributes Relationships Entities Primary keys ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A functional dependency is a relationship between or among: rows. attributes. tables. relations. rows. attributes. tables. relations. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entity instances are associated by relationship classes. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An identifier determines the type of relationship that an entity has. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents an actual occurrence of an associated generalized entity? Instance entity Archetype entity Subtype entity Supertype entity Instance entity Archetype entity Subtype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A file that is organized in uniform format is formally referred to as a _____ or a database file. Structured data file Document Database None of these Record Structured data file Document Database None of these Record ANSWER DOWNLOAD EXAMIANS APP
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