Which design better when use foreign key instead of a string to store a list of id
- by Kien Thanh
I'm building online examination system. I have designed to table, Question and GeneralExam. The table GeneralExam contains info about the exam like name, description, duration,...
Now I would like to design table GeneralQuestion, it will contain the ids of questions belongs to a general exam.
Currently, I have two ideas to design GeneralQuestion…