Introduction to Database System Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? Subtype entity Archetype entity Instance entity Supertype entity Subtype entity Archetype entity Instance entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System For some relations, changing the data can have undesirable consequences called: referential integrity constraints. normal forms. modification anomalies. transitive dependencies. referential integrity constraints. normal forms. modification anomalies. transitive dependencies. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As tables both (a) and (b) tuple None of these relations tables both (a) and (b) tuple None of these relations ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data encryption techniques are particularly useful for protecting data in data communication systems All of these reducing storage space requirements improving data integrity None of these protecting data in data communication systems All of these reducing storage space requirements improving data integrity None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, the CREATE VIEW command is used to recompile view to define a view of one or more tables or views to create a trigger to recompile a table to recompile view to define a view of one or more tables or views to create a trigger to recompile a table ANSWER DOWNLOAD EXAMIANS APP
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