Introduction to Database System For some relations, changing the data can have undesirable consequences called: modification anomalies. normal forms. referential integrity constraints. transitive dependencies. modification anomalies. normal forms. referential integrity constraints. transitive dependencies. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is considered a: three-dimensional table. one-dimensional table. two-dimensional table. Column. three-dimensional table. one-dimensional table. two-dimensional table. Column. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An entity class is a collection of entities and is described by the structure of the entities in that class. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An entity is something that can be identified in the user's work environment; something that the users want to track. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes record relationships None of these All of these data elements records and files record relationships None of these All of these data elements records and files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Helping people keep track of things is the purpose of a(n) ________ . table instance relationship database table instance relationship database ANSWER DOWNLOAD EXAMIANS APP
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