Introduction to Database System Which of the following is a group of one or more attributes that uniquely identifies a row? Relation Key Determinant Tuple Relation Key Determinant Tuple ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A recursive relationship is a relationship between an entity and ________ . itself a subtype entity an archetype entity an instance entity itself a subtype entity an archetype entity an instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity. child parent instance subtype child parent instance subtype ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An-owner-member set in the CODASYL specifications may have more than one member but only one occurrence per member only one member but many member occurrence All of the listed here only one owner but many owner occurrences more than one member but only one occurrence per member only one member but many member occurrence All of the listed here only one owner but many owner occurrences 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 DISTINCT SELECT DIFFERENT All of these None of these SELECT UNIQUE SELECT DISTINCT SELECT DIFFERENT All of these None of these SELECT UNIQUE ANSWER DOWNLOAD EXAMIANS APP
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