Chapter 4 - Chapter 4 MULTIPLE CHOICE 1 What is the most popular type of database a b c d hierarchical relational object-oriented network 2 A set

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Chapter 4 MULTIPLE CHOICE 1. What is the most popular type of database? a) hierarchical b) relational c) object-oriented d) network 2. A set of interrelated, centrally coordinated files is called a) a database. b) a master file. c) a transaction file. d) a multiple-records grouping (MRG). 3. All of the following are benefits of database technology except: a) Data integration and sharing b) Decentralized management of data c) Minimal data redundancy d) Reporting flexibility 4. Schemas are used in designing database systems. The schema that provides an organization-wide view of the entire database is known as a) the external-level schema. b) the internal-level schema. c) the conceptual-level schema. d) the logical view of the database. 5. The ____________ contains information about the structure of the database. a) Data definition language b) Data dictionary c) Data warehouse d) Database management system 6. The DBMS language that is used to build, initialize, and describe logical views for users is called the a) DDL. b) DML. c) DQL. d) DBA. 7. Creating an empty table in a relational database requires use of the __________, and filling that table requires the use of __________. a) DDL; DML b) DQL; SQL c) DDL; DQL d) DML; DDA 1
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8. The attribute that can uniquely identify a specific row in a table is the a) primary key b) secondary key c) foreign key d) logical key
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This note was uploaded on 07/01/2011 for the course ECONOMIC 00128876 taught by Professor Dr.a'delmsarouh during the Summer '11 term at Hashemite University.

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Chapter 4 - Chapter 4 MULTIPLE CHOICE 1 What is the most popular type of database a b c d hierarchical relational object-oriented network 2 A set

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