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。
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
可以使用多种方式完成Sql Database备份。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。
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。
使用这样的配置文件是一个好习惯：
<?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();
}
}
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);
}
}
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");
}
您可以使用以下查询进行备份和还原，您必须更改备份的路径
数据库名称= [数据]
备份：
BACKUP DATABASE [data] TO DISK = N'C:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\Backup\data.bak' WITH NOFORMAT, NOINIT, NAME = N'data-Full Database Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10
GO
恢复：
RESTORE DATABASE [data] FROM DISK = N'C:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\Backup\data.bak' WITH FILE = 1, NOUNLOAD, REPLACE, STATS = 10
GO
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;
}
}