One: I have a table called quizData. It will always contain only 1 row. It
has columns option1, option2, option3, option4, option5 each of type
int. In the beginning, these columns have 0 as their value. How do I add
1 to any column, say option2?
Two: How could I restrict a Registered user to submit a form only once. for example in a article comment form an user can comment only once per article.
thank you.