Introduction to Database System A logical schema is the entire database All of these describes how data is actually stored on disk None of these is a standard way of organizing information into accessible parts is the entire database All of these describes how data is actually stored on disk None of these is a standard way of organizing information into accessible parts ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Primary keys Entities Attributes Relationships Primary keys Entities Attributes Relationships 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 Supertype entity Subtype entity Instance entity Archetype entity Supertype entity Subtype entity Instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to enable/disable all triggers on a table? ALTER TRIGGERS ALTER TABLE MODIFY TRIGGERS IN TABLE All of the listed here ALTER TRIGGERS ALTER TABLE MODIFY TRIGGERS IN TABLE All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity? Weak entity ID-dependent entity Strong entity ID-independent entity Weak entity ID-dependent entity Strong entity ID-independent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: second normal form. third normal form. fourth normal form. domain/key normal form. second normal form. third normal form. fourth normal form. domain/key normal form. ANSWER DOWNLOAD EXAMIANS APP
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