Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? None of the listed here Data field Bits Characters None of the listed here Data field Bits Characters 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 Entities of a given type are grouped into a(n): ER entity class. attribute. database. ER entity class. attribute. database. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If attribute A determines both attributes B and C, then it is also true that: (B,C) → A → B → C → (B,C) → A → B → C → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not an advantage of the data-base approach? program/data independence elimination of the data redundancy increased security ability to associate related data All of these program/data independence elimination of the data redundancy increased security ability to associate related data All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A file that is organized in uniform format is formally referred to as a _____ or a database file. Document Record Structured data file None of these Database Document Record Structured data file None of these Database ANSWER DOWNLOAD EXAMIANS APP
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