What is one situation where it could be useful to run and unmatched query?
What will be an ideal response?
An unmatched query could be run to identify values that have no match in a related table, for example, an order with no matching customer information. There are several potential good examples that can be given here.
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Which of these exception specifications is correct, and why?
Suppose we have the class definitions, where the exception specification is as listed below: ``` class B{public: virtual void f() throw(int, double);};class D:public B{public: virtual void f() //The exception specification you //choose from the list goes here. ``` a) Use no exception specification. b) throw ( ) c) throw(int) d) throw(int, double) e) throw(int , double, string) f) throw(double); g) None of these, because you can’t derive from a class where member functions have exception specifications.
What is the correct signature for a function that converts a Rational to double?
a. double operator() b. operator double() c. Rational operator double() d. double operator double()
Constructor that converts an AdjacencyMatrix object to a Digraph
What will be an ideal response?
A(n) ____ extracts data from one or more database tables according to criteria that you set.
A. object B. report C. query D. form