Introduction to Database System The relational model uses some unfamiliar terminology. A tuple is equivalent to a data base field record data item data base field record data item 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 → A → (B,C). A → (B,C) → A → A → (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? Determinant Relation Key Tuple Determinant Relation Key Tuple ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Characteristic(s) of a distributed MIS structure is computers supporting local DP operations All of these interactive sharing of the workload a multiprocessing environment None of these computers supporting local DP operations All of these interactive sharing of the workload a multiprocessing environment None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Applications are programs that interact directly with the database. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
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