Introduction to Database System Which of the following is not a logical data-base structure? tree network relational chain tree network relational chain ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity? Instance entity Subtype entity Supertype entity Archetype entity Instance entity Subtype entity Supertype entity Archetype entity 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 Instance entity Subtype entity Supertype entity Archetype entity Instance entity Subtype entity Supertype entity 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
Introduction to Database System A computer file can be best described as a general collection of data items an orderly collection of data items None of these a random collection of data items a single data item a general collection of data items an orderly collection of data items None of these a random collection of data items a single data item ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The relational database model was created by E.F. Codd. False True False True ANSWER DOWNLOAD EXAMIANS APP
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