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POUsing SMO to backup SQL Server 2005 Database with C# Windows Forms Application, Back up failed
 

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  1. POUsing SMO to backup SQL Server 2005 Database with C# Windows Forms Application, Back up failed
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    <p>This is my code to back up my database I followed <a href="http://www.codeproject.com/KB/database/SQL_Server_2005_Database.aspx" rel="nofollow">this tutorial</a>, as you can see, the codes are identical. The error comes after I fill in the variables. The error I get is </p> <blockquote> <p>Backup failed for Server 'RITZEL-PC\SQLEXPRESS'.</p> </blockquote> <p><strong>Back up function:</strong></p> <pre><code> public void BackupDatabase(String databaseName, String userName, String password, String serverName, String destinationPath) { Backup sqlBackup = new Backup(); sqlBackup.Action = BackupActionType.Database; sqlBackup.BackupSetDescription = "ArchiveDataBase:" + DateTime.Now.ToShortDateString(); sqlBackup.BackupSetName = "Archive"; sqlBackup.Database = databaseName; BackupDeviceItem deviceItem = new BackupDeviceItem(destinationPath, DeviceType.File); ServerConnection connection = new ServerConnection(serverName, userName, password); Server sqlServer = new Server(connection); Database db = sqlServer.Databases[databaseName]; sqlBackup.Initialize = true; sqlBackup.Checksum = true; sqlBackup.ContinueAfterError = true; sqlBackup.Devices.Add(deviceItem); sqlBackup.Incremental = false; sqlBackup.ExpirationDate = DateTime.Now.AddDays(3); sqlBackup.LogTruncation = BackupTruncateLogType.Truncate; sqlBackup.FormatMedia = false; sqlBackup.SqlBackup(sqlServer); } </code></pre> <p><strong>Button click</strong></p> <pre><code> private void BackUp_Btn_Click(object sender, EventArgs e) { String databaseName = @"D:\MY_THESIS\WORKING FILES\NNIT-RMS.mdf"; String userName = "NNIT-Admin"; String password = "password"; String serverName = @"RITZEL-PC\SQLEXPRESS"; String destinationPath = @"D:\"; BackupDatabase(databaseName,userName,password,serverName,destinationPath); } </code></pre> <p><strong>Database Information</strong> I am not allowed to post images yet but I have uploaded a screen shot. See here: <a href="http://img268.imageshack.us/img268/9250/sqlg.jpg" rel="nofollow">http://img268.imageshack.us/img268/9250/sqlg.jpg</a></p>
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    1. COThe `databaseName` should be the **logical database name** of the database when it's attached to the SQL Server Express - e.g. `MYDATABASE` - and **not** the entire file name of the `.mdf` file. I don't think SMO allows you to back up a separate `.mdf` file
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    2. COIf you would look at the screen shot I posted above, I placed a screen shot of the database information of the database I want to backup. That is the name that appears on the database node in sqlserver2005. Am I doing it wrong?
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    3. COI'm saying: you cannot backup a "stand-alone" `.mdf` file with SMO. You need to **attach** the `.mdf` file to your SQL Server Express, give it a **logical** database name, and then use that logical database name for your SMO backup. This whole "attach .mdf on the fly" feature is a bit of a mess and quite frankly should not be used - and will be discontinued in SQL Server 2012 ("Denali")
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