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Find Correctly Answered Questions in an Online Test with Single and Multi Choice Questions
Category : Databases

See the tables : http://dl.dropbox.com/u/10356431/Shared/screen.png


Please help me to construct a SQL to find the correctly answered questions in an online test for a particular test_id.


I have constructed one.


SELECT COUNT(UNIQUE d.question_id) AS CORRECT
FROM test_response d,
question_response r
WHERE d.response_id = r.question_res

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How to Avoid Interrogatory Questions for Divorce Questions
Category : Relationships & Family
An interrogatory in a divorce case is a list of questions submitted to one party that is designed to gather information. The person who receives the interrogatory is obligated to answer all of the questions in writing within 30 days. These answers are treated the same as if the testimony was given in court. These questionnaires can be very lengthy and sometimes difficult to answer. However, they a

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Interview Questions: Most Common, Illegal, and Questions You Should Never Ask
Category : Business
Employers should know the kinds of questions to prepare for prospective employees. The most common questions are open-ended and give job applicants an opportunity to elaborate on their qualifications for the position. However, there are some questions that interviewers are better off not asking, and others that are downright illegal. Interviewers would be well-advised to find out the federal and s

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Good Questions to Ask During the Game 20 Questions
Category : Hobbies, Games & Toys
20 Questions is one of the classic "I'm bored" games that parents keep in their repertoire. When kids are bored on a car trip or waiting in lines, this game can entertain them for an hour or more. One person thinks of an object, and the other person is allowed 20 questions to narrow down the object in question. A skillful questioner knows how to get closer to the object with each questio

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Method for replacing old ranked questions with newly ranked questions
Category : Programming Languages
def replaceranked
oldrankings = Question.where(:rank => [1,2,3,4,5])
# Mocking the creation of a new top 5
newrankings = Question.where(:id => [4,5,6,7,8])
newrankings.each_with_index |a, i|
a.rank = i+
end
oldids = oldrankings.map{|a| a.id}
newids = newrankings.map{|a| a.id

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A few questions about ARC for iOS?
Category : Programming Languages

I'm fairly new to ARC for iOS (and pretty new to iOS in general) and I have a few quick questions about ARC.


~ In a View Controller, if I do not have statements in my viewDidUnload() method setting my properties to nil, will the properties' memory still be freed when my view controller is released? If so, why do I need to explicitly have this viewDidUnload method?


~ In o


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TAGS : questions about

C++ cin questions
Category : Programming Languages

This seems to be weird:


int main(int argc, char* argv[]) {
cout << "function main() .." << '
';
char ch = 0;
double number_value=1.1;
cin >> ch;
cin.putback(ch);
cin >> number_value;
cout << "1 .. " << " " << cin.good() << " " << number_value &

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TAGS : questions

C++ help and questions
Category : Careers & Job Searching

I need help making an c++ program with a function that uses int Disc(int A, int B, int C) and calculates returns B*B-4*A*C and use the function Disc in the program..... i have this so far.


void main(){
cout << Disc(a,b,c);
}

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TAGS : help questions

A few questions about the DLR
Category : Programming Languages

Is it true that all operations on the dynamic type are dispatched to the DLR? From this video, it looks like but they don't say it in so many words and I just want to be sure that the statement is right as I was about to write it in some communication.


They also say that the DLR is currently in System.Core.dll.


I want to know if the DLR has its own assembly or namespace.


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TAGS : questions about

ARC in iOS questions
Category : Operating Systems

~ Will ARC always release an object the line after the last strong pointer is removed? Or is it undetermined and at some unspecified point in the future it will be released? Similarly, assuming that you don't change anything with your program, will ARC always be the same each time you run and compile your program?


~ How do you deal with handing an object off to other classes? For ex


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