Introduction to Database System The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in None of these an indexed file a tree file a hashed file a sequential file None of these an indexed file a tree file a hashed file a sequential file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The PROJECT command will create new table that has more rows than the original table none of the listed here more fields than the original table both of the listed here more rows than the original table none of the listed here more fields than the original table both of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the columns are sometimes called "attributes". False True False True 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 → A → (B,C). (B,C) → A → A → A → (B,C). (B,C) → A → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a group of one or more attributes that uniquely identifies a row? Tuple Relation Key Determinant Tuple Relation Key Determinant ANSWER DOWNLOAD EXAMIANS APP
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