The design is of course your decision, but for example, you could have one DB just for auth across all your apps. Then you might have separate DBs for each app's data.
I have never shared login sessions between apps. However, maybe Massimo's suggestion above is helpful. If you need such flexibility maybe you might also be interested in a remote authentication method, e.g. Janrain (now maybe SimpleAuth too). On Apr 27, 3:09 pm, toan75 <toa...@gmail.com> wrote: > Thank for reply. > - I need create only one DB for all app or one Auth db + others app db? > - Please explain to me how to automatically login when switching to another > application? > Many thanks.