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 The model for a _____ resembles the hierarchical model in many respects. Network database Hierarchical database Relational database None of these Distributed database Network database Hierarchical database Relational database None of these Distributed database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A tuple is a(n): column of a table. row of a table. key of a table. two dimensional table. column of a table. row of a table. key of a table. two dimensional table. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data encryption techniques are particularly useful for None of these reducing storage space requirements protecting data in data communication systems All of these improving data integrity None of these reducing storage space requirements protecting data in data communication systems All of these improving data integrity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A multiple-form file management system lets you create a look-up form with an associated read-only password to prevent access by unauthorized users None of these both (a) and (b) lets you define different forms for different operations allow you to entry data in all the forms lets you create a look-up form with an associated read-only password to prevent access by unauthorized users None of these both (a) and (b) lets you define different forms for different operations allow you to entry data in all the forms ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, the _____ command is used to recompile a view ALTER VIEW COMPILE VIEW CREATE VIEW None of these DEFINE VIEW ALTER VIEW COMPILE VIEW CREATE VIEW None of these DEFINE VIEW ANSWER DOWNLOAD EXAMIANS APP
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