Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows All of these SELECT UNIQUE SELECT DISTINCT None of these SELECT DIFFERENT All of these SELECT UNIQUE SELECT DISTINCT None of these SELECT DIFFERENT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation has cells that hold multi-value entries. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A form can be used to format printed output modify records All of these None of these delete records format printed output modify records All of these None of these delete records ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System For some relations, changing the data can have undesirable consequences called: modification anomalies. normal forms. transitive dependencies. referential integrity constraints. modification anomalies. normal forms. transitive dependencies. referential integrity constraints. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An indexing operation None of the listed here establishes an index for a file sorts a file using a single key sorts file using two keys None of the listed here establishes an index for a file sorts a file using a single key sorts file using two keys ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As tables tuple both (a) and (b) None of these relations tables tuple both (a) and (b) None of these relations ANSWER DOWNLOAD EXAMIANS APP
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