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? Archetype entity Supertype entity Subtype entity Instance entity Archetype entity Supertype entity Subtype entity Instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A form can be used to format printed output All of these modify records delete records None of these format printed output All of these modify records delete records None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not an advantage of the data-base approach? All of these ability to associate related data increased security program/data independence elimination of the data redundancy All of these ability to associate related data increased security program/data independence elimination of the data redundancy ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data item characteristics that are important in data management include width punctuation language spelling width punctuation language spelling ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows SELECT DIFFERENT SELECT DISTINCT None of these SELECT UNIQUE All of these SELECT DIFFERENT SELECT DISTINCT None of these SELECT UNIQUE All of these ANSWER DOWNLOAD EXAMIANS APP
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 Sort Key Index Update None of these Delete Sort Key Index Update ANSWER DOWNLOAD EXAMIANS APP
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