Introduction to Database System A database design may be based on existing data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier? ID-dependent entity Strong entity ID- independent entity Weak entity ID-dependent entity Strong entity ID- independent entity Weak entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities of a given type are grouped into a(n): attribute. ER entity class. database. attribute. ER entity class. database. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a _____ a parent record type can be linked to one or more "child" record types, but a child record type can have only one parent. Distributed database Network database Relational database Hierarchical database Distributed database Network database Relational database Hierarchical database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes record relationships All of these records and files data elements None of these record relationships All of these records and files data elements None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The following are components of a database except ________ . reports indexes metadata user data reports indexes metadata user data ANSWER DOWNLOAD EXAMIANS APP
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