Introduction to Database System Entities can be associated with one another in which of the following? Relationships Entities Identifiers Attributes Relationships Entities Identifiers Attributes ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n): transitive dependency. normal form. referential integrity constraint. insertion anomaly. transitive dependency. normal form. referential integrity constraint. insertion anomaly. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type may be related to more than one record of another record type. One-to-one relationship Many-to many relationship Many-to-one relationship One-to-many relationship One-to-one relationship Many-to many relationship Many-to-one relationship One-to-many relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents an actual occurrence of an associated generalized entity? Archetype entity Subtype entity Supertype entity Instance entity Archetype entity Subtype entity Supertype entity Instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Composite identifiers consist of two or more attributes. False True False True ANSWER DOWNLOAD EXAMIANS APP
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