Introduction to Database System A form can be used to modify records format printed output All of these delete records None of these modify records format printed output All of these delete records None of these 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: A → (B,C) → A → A → (B,C). A → (B,C) → A → A → (B,C). ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The master list of an indexed file contains only a list of keys and record numbers both (b) and (c) has a number assigned to each record None of these is sorted in ascending order contains only a list of keys and record numbers both (b) and (c) has a number assigned to each record None of these is sorted in ascending order ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System To have a file hold a list, it is necessary to All of the listed here identify the name, width and type of the fields of each record. decide which fields will be used as sort or index keys identify the records in the list All of the listed here identify the name, width and type of the fields of each record. decide which fields will be used as sort or index keys identify the records in the list ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute that names or identifies entity instances is a(n): attribute. identifier. entity. relationship. attribute. identifier. entity. relationship. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The highest level in the hierarchy of data organization is called data file database data bank data record data file database data bank data record ANSWER DOWNLOAD EXAMIANS APP
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