I downloaded an example application from Microsoft demonstrating something I'm trying to learn. I opened up the App.Config file and found that it uses a .MDF file that comes with the download and SQL Express to work with it. I didn't have SQL Express on my machine, so I went ahead and downloaded it and installed it earlier this morning. I downloaded and installed SQL Server 2014 Express, 64-bit version.Next I got into Visual Studio and started to run it. It failed with a[quote]Cannot open database "SchoolDB" requested by the login. The login failed.[/quote]error message.So then I got into SSMS and connected to the SQLExpress database engine now on my machine. I saw that the database wasn't there (no real surprise here, I should have thought of that before trying to run the app in VS). However, my attempt to try to attach to the .MDF file also failed with the following error:[quote]Operating system error 5: "5(Access is denied.)"[/quote]I don't know if this has anything to do with the error that SSMS gave me or not, but I noticed that the download doesn't even have a .LOG file, so I can't attach to that anyway.So, is the problem that there's no .LOG file associated with the .MDF file? Or is there some other issue involved?
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