我想编写一个代码来使用C＃在.Net 4 FrameWork中备份我的Sql Server 2008数据库。任何人都可以帮忙。
答案 0 :(得分：25)
您可以使用SqlConnection和SqlCommand连接到数据库并执行以下命令文本，例如：
BACKUP DATABASE [MyDatabase] TO DISK = 'C:\....\MyDatabase.bak'
有关示例，请参阅here。
答案 1 :(得分：18)
使用这样的配置文件是一个很好的做法：
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<connectionStrings>
<add name="MyConnString" connectionString="Data Source=(local);Initial Catalog=MyDB; Integrated Security=SSPI" ;Timeout=30"/>
</connectionStrings>
<appSettings>
<add key="BackupFolder" value="C:/temp/"/>
</appSettings>
</configuration>
您的C＃代码将是这样的：
// read connectionstring from config file
var connectionString = ConfigurationManager.ConnectionStrings["MyConnString"].ConnectionString;
// read backup folder from config file ("C:/temp/")
var backupFolder = ConfigurationManager.AppSettings["BackupFolder"];
var sqlConStrBuilder = new SqlConnectionStringBuilder(connectionString);
// set backupfilename (you will get something like: "C:/temp/MyDatabase-2013-12-07.bak")
var backupFileName = String.Format("{0}{1}-{2}.bak",
backupFolder, sqlConStrBuilder.InitialCatalog,
DateTime.Now.ToString("yyyy-MM-dd"));
using (var connection = new SqlConnection(sqlConStrBuilder.ConnectionString))
{
var query = String.Format("BACKUP DATABASE {0} TO DISK='{1}'",
sqlConStrBuilder.InitialCatalog, backupFileName);
using (var command = new SqlCommand(query, connection))
{
connection.Open();
command.ExecuteNonQuery();
}
}
答案 2 :(得分：15)
适合我：
public class BackupService
{
private readonly string _connectionString;
private readonly string _backupFolderFullPath;
private readonly string[] _systemDatabaseNames = { "master", "tempdb", "model", "msdb" };
public BackupService(string connectionString, string backupFolderFullPath)
{
_connectionString = connectionString;
_backupFolderFullPath = backupFolderFullPath;
}
public void BackupAllUserDatabases()
{
foreach (string databaseName in GetAllUserDatabases())
{
BackupDatabase(databaseName);
}
}
public void BackupDatabase(string databaseName)
{
string filePath = BuildBackupPathWithFilename(databaseName);
using (var connection = new SqlConnection(_connectionString))
{
var query = String.Format("BACKUP DATABASE [{0}] TO DISK='{1}'", databaseName, filePath);
using (var command = new SqlCommand(query, connection))
{
connection.Open();
command.ExecuteNonQuery();
}
}
}
private IEnumerable<string> GetAllUserDatabases()
{
var databases = new List<String>();
DataTable databasesTable;
using (var connection = new SqlConnection(_connectionString))
{
connection.Open();
databasesTable = connection.GetSchema("Databases");
connection.Close();
}
foreach (DataRow row in databasesTable.Rows)
{
string databaseName = row["database_name"].ToString();
if (_systemDatabaseNames.Contains(databaseName))
continue;
databases.Add(databaseName);
}
return databases;
}
private string BuildBackupPathWithFilename(string databaseName)
{
string filename = string.Format("{0}-{1}.bak", databaseName, DateTime.Now.ToString("yyyy-MM-dd"));
return Path.Combine(_backupFolderFullPath, filename);
}
}
答案 3 :(得分：9)
以下Link已经解释了有关如何使用c＃
备份sql server 2008数据库的完整详细信息Sql Database备份可以通过多种方式完成。您可以像在其他答案中一样使用Sql命令，也可以创建自己的类来备份数据。
但这些是不同的备份模式。
但这种方法的缺点是它需要在您的客户端系统上安装sql management studio。
答案 4 :(得分：2)
SqlConnection con = new SqlConnection();
SqlCommand sqlcmd = new SqlCommand();
SqlDataAdapter da = new SqlDataAdapter();
DataTable dt = new DataTable();
con.ConnectionString = ConfigurationManager.ConnectionStrings["MyConString"].ConnectionString;
string backupDIR = "~/BackupDB";
string path = Server.MapPath(backupDIR);
try
{
var databaseName = "MyFirstDatabase";
con.Open();
string saveFileName = "HiteshBackup";
sqlcmd = new SqlCommand("backup database" +databaseName.BKSDatabaseName + "to disk='" + path + "\\" + saveFileName + ".Bak'", con);
sqlcmd.ExecuteNonQuery();
con.Close();
ViewBag.Success = "Backup database successfully";
return View("Create");
}
catch (Exception ex)
{
ViewBag.Error = "Error Occured During DB backup process !<br>" + ex.ToString();
return View("Create");
}
答案 5 :(得分：0)
这对我有用...
private void BackupButtonClick(object sender, RoutedEventArgs e)
{
// FILE NAME WITH DATE DISTICNTION
string fileName = string.Format("SchoolBackup_{0}.bak", DateTime.Now.ToString("yyyy_MM_dd_h_mm_tt"));
try
{
// YOUR SEREVER OR MACHINE NAME
Server dbServer = new Server (new ServerConnection("DESKTOP"));
Microsoft.SqlServer.Management.Smo.Backup dbBackup = new Microsoft.SqlServer.Management.Smo.Backup()
{
Action = BackupActionType.Database,
Database = "School"
};
dbBackup.Devices.AddDevice(@backupDirectory() +"\\"+ fileName, DeviceType.File);
dbBackup.Initialize = true;
dbBackup.SqlBackupAsync(dbServer);
MessageBox.Show("Backup", "Backup Completed!");
}
catch(Exception err)
{
System.Windows.MessageBox.Show(err.ToString());
}
}
// THE DIRECTOTRY YOU WANT TO SAVE IN
public string backupDirectory()
{
using (var dialog = new FolderBrowserDialog())
{
var result = dialog.ShowDialog();
return dialog.SelectedPath;
}
}
答案 6 :(得分：0)
private void BackupManager_Load(object sender, EventArgs e)
{
txtFileName.Text = "DB_Backup_" + DateTime.Now.ToString("dd-MMM-yy");
}
private void btnDBBackup_Click(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(txtFileName.Text.Trim()))
{
BackUp();
}
else
{
MessageBox.Show("Please Enter Backup File Name", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
txtFileName.Focus();
return;
}
}
private void BackUp()
{
try
{
progressBar1.Value = 0;
for (progressBar1.Value = 0; progressBar1.Value < 100; progressBar1.Value++)
{
}
pl.DbName = "Inventry";
pl.Path = @"D:/" + txtFileName.Text.Trim() + ".bak";
for (progressBar1.Value = 100; progressBar1.Value < 200; progressBar1.Value++)
{
}
bl.DbBackUp(pl);
for (progressBar1.Value = 200; progressBar1.Value < 300; progressBar1.Value++)
{
}
for (progressBar1.Value = 300; progressBar1.Value < 400; progressBar1.Value++)
{
}
for (progressBar1.Value = 400; progressBar1.Value < progressBar1.Maximum; progressBar1.Value++)
{
}
if (progressBar1.Value == progressBar1.Maximum)
{
MessageBox.Show("Backup Saved Successfully...!!!", "", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Action Failed, Please try again later", "", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
catch (Exception ex)
{
MessageBox.Show("Action Failed, Please try again later", "", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
progressBar1.Value = 0;
}
}
答案 7 :(得分：0)
1。使用备份sqlcmd命令创建.bat文件
用于备份
SqlCmd -E -S Server_Name –Q “BACKUP DATABASE [Name_of_Database] TO DISK=’X:PathToBackupLocation[Name_of_Database].bak'”
还原
SqlCmd -E -S Server_Name –Q “RESTORE DATABASE [Name_of_Database] FROM DISK=’X:PathToBackupFile[File_Name].bak'”
2。使用WPF / C＃代码运行bat文件
FileInfo file = new FileInfo("DB\\batfile.bat");
Process process = new Process();
process.StartInfo.FileName = file.FullName;
process.StartInfo.Arguments = @"-X";
process.StartInfo.WindowStyle = ProcessWindowStyle.Normal;
process.StartInfo.UseShellExecute = false; //Changed Line
process.StartInfo.RedirectStandardOutput = true; //Changed Line
process.Start();
string output = process.StandardOutput.ReadToEnd(); //Changed Line
process.WaitForExit(); //Moved Line
答案 8 :(得分：0)
您可以使用C＃对SQL Server实例的数据库进行备份，如下所示
步骤1：安装Nuget软件包“ Install-Package Microsoft.SqlServer.SqlManagementObjects”
第2步：使用以下C＃命令通过“自定义”功能进行备份
public void BackupDatabase(string databaseName, string userName, string password, string serverName, string destinationPath)
{
//Define a Backup object variable.
Backup sqlBackup = new Backup();
//Specify the type of backup, the description, the name, and the database to be backed up.
sqlBackup.Action = BackupActionType.Database;
sqlBackup.BackupSetDescription = "BackUp of:" + databaseName + "on" + DateTime.Now.ToShortDateString();
sqlBackup.BackupSetName = "FullBackUp";
sqlBackup.Database = databaseName;
//Declare a BackupDeviceItem
BackupDeviceItem deviceItem = new BackupDeviceItem(destinationPath + "FullBackUp.bak", DeviceType.File);
//Define Server connection
ServerConnection connection = new ServerConnection(serverName, userName, password); //To Avoid TimeOut Exception
Server sqlServer = new Server(connection);
sqlServer.ConnectionContext.StatementTimeout = 60 * 60;
Database db = sqlServer.Databases[databaseName];
(Reference Database As microsoft.sqlserver.management.smo.database, not as System.entity.database)
sqlBackup.Initialize = true;
sqlBackup.Checksum = true;
sqlBackup.ContinueAfterError = true;
//Add the device to the Backup object.
sqlBackup.Devices.Add(deviceItem);
//Set the Incremental property to False to specify that this is a full database backup.
sqlBackup.Incremental = false;
sqlBackup.ExpirationDate = DateTime.Now.AddDays(3);
//Specify that the log must be truncated after the backup is complete.
sqlBackup.LogTruncation = BackupTruncateLogType.Truncate;
sqlBackup.FormatMedia = false;
//Run SqlBackup to perform the full database backup on the instance of SQL Server.
sqlBackup.SqlBackup(sqlServer);
//Remove the backup device from the Backup object.
sqlBackup.Devices.Remove(deviceItem);
}
添加引用
Microsoft.SqlServer.ConnectionInfo
Microsoft.SqlServer.Management.Sdk.Sfc
Microsoft.SqlServer.Smo
Microsoft.SqlServer.SmoExtended
Microsoft.SqlServer.SqlEnum
就这样，您完成了，它将在传递给函数的指定位置备份指定数据库。
来源：Various ways to back up SQL server database
注意：用户必须具有适当的权限才能在指定的磁盘位置上写入备份数据。