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? Bits Characters Data field None of the listed here Bits Characters Data field None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL? MODIFY TABLE All of the listed here ALTER TABLE DEFINE TABLE MODIFY TABLE All of the listed here ALTER TABLE DEFINE TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The model for a _____ resembles the hierarchical model in many respects. Relational database Network database Hierarchical database Distributed database None of these Relational database Network database Hierarchical database Distributed database None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a database administrator's function? backing up the database performance monitoring database design All of the listed here backing up the database performance monitoring database design All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Because it contains a description of its own structure, a database is considered to be ________ . self-describing described an application program metadata compatible self-describing described an application program metadata compatible ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Instance entity Subtype entity Supertype entity Archetype entity Instance entity Subtype entity Supertype entity Archetype entity ANSWER DOWNLOAD EXAMIANS APP
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