Introduction to Database System Which of the following is not characteristic of a relational database model? complex logical relationships treelike structure records tables complex logical relationships treelike structure records tables ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In which of the following can many entity instances of one type be related to many entity instances of another type? Composite Relationship One-to-One Relationship Many-to-Many Relationship One-to-Many Relationship Composite Relationship One-to-One Relationship Many-to-Many Relationship One-to-Many Relationship 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The data-base environment has all of the following components except: users separate files data-base administrator data base None of these users separate files data-base administrator data base None of these 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 The different classes of relations created by the technique for preventing modification anomalies are called: referential integrity constraints. functional dependencies. None of these normal forms. referential integrity constraints. functional dependencies. None of these normal forms. ANSWER DOWNLOAD EXAMIANS APP
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