How to compare user answer with correct answer?

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Hi,

I have a database named Quiz and I would like to check if the user selected answer from the radio button list is the the correct answer.

The correct answers are stored in the database and I am storing the user answer in database as the users clicks the radio button.

How can I make that the comparison?

The table Questions contains 4 columns (QuestionID, description, correctAnswer, userAnswer).

So in conclusion, how can I compare those 2 columns from database when I click the button?
If the values of correctAnswer are the same with userAnswer.

Thanks

Posted 6-Apr-13 4:55am

pantelis89

Updated 6-Apr-13 5:03am

André Kraak

v3

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vinodkumarnie 6-Apr-13 13:49pm

Don't expect the answer from others.. Please do think yourself..

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OriginalGriff · Answer 1 · 2013-04-06T05:29:00

That's probably not the way you want to do it.
Think about it for a moment - will there ever be more than one user? If so, then you want to record each user with his answer, rather than record the correct answer in the same table.

I'm just guessing what you are doing, but given that you seem to be multiple choice, I would have a couple of tables:
Questions:

QuestionID              INT or UID
QuestionDescription     VARCHAR
Answer1                 VARCHAR
Answer2                 VARCHAR
Answer3                 VARCHAR
Answer4                 VARCHAR
CorrectAnswer           INT

Answers

AnswerID                INT or UID
QuestionID              INT or UID
UserID                  INT or UID
UserAnswer              INT

The IDs Would be either INT or UniqueID depending on what you prefer.
This way, you get the text that goes beside the radio button from the DB, and record the user results in a different table, cross referencing it to the question and the user that answered.