Introduction to Database System If you want to organize a file in multiple ways, it is better to _____ the data rather than to sort it. None of these Delete Index Update Sort Key None of these Delete Index Update Sort Key ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Given the functional dependency R → S , R is called the determinant. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator? Subtype entity Archetype entity Instance entity Supertype entity Subtype entity Archetype entity Instance entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Sort/report generators do not need to sort before generating a report are faster than index/report generators require more disk space than index/report generators none of the listed here do not need to sort before generating a report are faster than index/report generators require more disk space than index/report generators none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Composite identifiers consist of two or more attributes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is true of a network structure? It is conceptually simple It will be the dominant data base of the future It allows a many-to-many relationship It is a physical representation of the data It is conceptually simple It will be the dominant data base of the future It allows a many-to-many relationship It is a physical representation of the data ANSWER DOWNLOAD EXAMIANS APP
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