Introduction to Database System Given the functional dependency R → S , R is called the determinant. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a database administrator's function? All of the listed here backing up the database performance monitoring database design All of the listed here backing up the database performance monitoring database design ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities use identifiers while tables use keys. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Composite identifiers consist of two or more attributes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Queries to a database All of these both (a) and (b) can use aggregate functions like SUM and COUNT are written in English None of these All of these both (a) and (b) can use aggregate functions like SUM and COUNT are written in English None of these 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
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