I don't have enough experience with databases
I'm database administrator in IT company. We have many current projects. But I don't have any experience and I hope you would assist me a little. I operate in Microsoft SQL Server 2008 R2. Only yesterday at 3 p.m. I got a message at opening .mdf...The header for the file 'Project1.mdf' is not a valid database file header. I suppose now I have to find any sql database recovery software or guide or trick to handle it. I feel embarassment of this situation.