Introduction to Database System An attribute that names or identifies entity instances is a(n): identifier. entity. attribute. relationship. identifier. entity. attribute. relationship. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An indexing operation establishes an index for a file sorts a file using a single key None of the listed here sorts file using two keys establishes an index for a file sorts a file using a single key None of the listed here sorts file using two keys ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The degree of a relationship refers to the number of entity classes in the relationship. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is true of a network structure? It will be the dominant data base of the future It is a physical representation of the data It is conceptually simple It allows a many-to-many relationship It will be the dominant data base of the future It is a physical representation of the data It is conceptually simple It allows a many-to-many relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities can be associated with one another in which of the following? Entities Relationships Attributes Identifiers Entities Relationships Attributes Identifiers ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. True False True False ANSWER DOWNLOAD EXAMIANS APP
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