Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows All of these None of these SELECT DIFFERENT SELECT DISTINCT SELECT UNIQUE All of these None of these SELECT DIFFERENT SELECT DISTINCT SELECT UNIQUE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The functional dependency R → S means that the value of S can be determined when we are given a value of R. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Sophisticated report generators can All of the listed here selectively retrieve and print portions of a list perform arithmetic operations print row-oriented reports All of the listed here selectively retrieve and print portions of a list perform arithmetic operations print row-oriented reports ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the order of the rows matters. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute that names or identifies entity instances is a(n): attribute. relationship. identifier. entity. attribute. relationship. identifier. entity. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A list consists of last names, first names, addresses, and pin codes if all people in the list have the same last and the same pin code, a useful key would be the pin code All of these the last name a compound key consisting of the first name and the last name None of these the pin code All of these the last name a compound key consisting of the first name and the last name None of these ANSWER DOWNLOAD EXAMIANS APP
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