This is related to backup and restore of the database.
I have created a site and took a backup of

• SiteName _PROF
• SiteName _SITE
• SiteName _SERV

And deleted the site. Now when I am restoring the
site with the same database I am not able to restore
it. I am getting this error.

Portal creation failed System.ApplicationException: A
portal site already exists with
the same ID as the one contained in the database being
used for portal recovery.
at Microsoft.SharePoint.Portal.Admin.c.a() at
Microsoft.SharePoint.Portal.Admin.c.f()

Is there any one who has faced this sort of problem?
In which database does this ID located.