Introduction to Database System Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM? DB2 IDMS dBase-II R:base DB2 IDMS dBase-II R:base ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Related fields in a data base are grouped to form data file menu None of these data record bank data file menu None of these data record bank 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? Archetype entity Subtype entity Supertype entity Instance entity Archetype entity Subtype entity Supertype entity Instance entity 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. None of these Record Database Structured data file Document None of these Record Database Structured data file Document ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The model for a _____ resembles the hierarchical model in many respects. Hierarchical database Network database None of these Relational database Distributed database Hierarchical database Network database None of these Relational database Distributed database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If a piece of data is stored in two places in the database, then None of these storage space is wasted it can be more easily accessed both (a) and (b) changing the data is one spot will cause data inconsistency None of these storage space is wasted it can be more easily accessed both (a) and (b) changing the data is one spot will cause data inconsistency ANSWER DOWNLOAD EXAMIANS APP
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