This question is based on my plan at the thread.
The following figure shows relations in my database
alt text http://files.getdropbox.com/u/175564/relation-figure.png
I have two “help-tables”: questions-subjects and check-moderator. I use the former because one question can have many subjects, while the later because more than one moderator can check a question.
I left out the 1-to-1 number out at the arrows.
The dotted arrow between the tables question and moderator-check indicates that there may be questions which moderators do not check.
This is my first database-project so there are mistakes in the tables.
What would you improve in the table?
User, UserInfo, Moderator and Password are redundant tables that offer no benefit.
They only express 1-1 relationships with User, so there is no need to normalize them into seperate tables:
Make one table: