I first duplicated the original Sitecore Web DB and just renamed to Sitecore Preview DB. Now that I noticed I accidentally copied the Sitecore Master DB instead of Web DB and I am trying to delete the current Preview DB but Microsoft SQL Server Management Studio shows an error says "Sitecore_Preview" is currently under use and cannot be deleted.
I tried to stop IIS of the Sitecore instance but it didn't work. Any thoughts?
