1. Posts
   1. content
   2. fk_thread
   3. fk_user
   4. datetime
   5. IsDeleted
2. Threads
   1. title
   2. fk_category
   3. fk_user
   4. IsDeleted
3. Categories
   1. name
   2. IsDeleted
   3. fk_role
   4. description
4. Users
   1. name
   2. password
   3. fk_role
   4. userimage
5. roles
   1. name
   2. description