Introduction to Database System In a large DBMS each subschema contains every field in the logical schema all of the listed here each user can "see" only a small part of the entire database each user can access every sub¬schema each subschema contains every field in the logical schema all of the listed here each user can "see" only a small part of the entire database each user can access every sub¬schema ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities of a given type are grouped into a(n): ER entity class. database. attribute. ER entity class. database. attribute. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that: (B,C) → A → (B,C). A → A → (B,C) → A → (B,C). A → A → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An identifier typically uses more than one attribute. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity represents an actual occurrence of an associated generalized entity? Supertype entity Archetype entity Instance entity Subtype entity Supertype entity Archetype entity Instance entity Subtype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If attribute A determines both attributes B and C, then it is also true that: B → (B,C) → C → A → B → (B,C) → C → A → ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS