我尝试创建数据库备份并恢复到另一个数据库，备份正在运行但是恢复失败，因为我创建备份时创建数据库名称也就像， USe Master 创建数据库[Samplename] 然后生成所有表格数据 因此，当我尝试使用c＃进行恢复时，它会尝试创建新数据库为 Samplename 而不是我的新SampleDB，然后它会给出异常
The file 'C:\Program Files (x86)\Microsoft SQL
Server\MSSQL11.BIZSQL\MSSQL\DATA\Product Company.mdf' cannot be
overwritten. It is being used by database 'Sample Product Company'.
File 'Sample Product Company' cannot be restored to 'C:\Program Files
(x86)\Microsoft SQL Server\MSSQL11.BIZSQL\MSSQL\DATA\Sample Product
Company.mdf'. Use WITH MOVE to identify a valid location for the file.
The file 'C:\Program Files (x86)\Microsoft SQL
Server\MSSQL11.BIZSQL\MSSQL\DATA\Sample Product Company_log.ldf' cannot be overwritten.
It is being used by database 'Sample Product Company'.
File 'Sample Product Company_log' cannot be restored to 'C:\Program Files
(x86)\Microsoft SQL Server\MSSQL11.BIZSQL\MSSQL\DATA\Sample Product
Company_log.ldf'. Use WITH MOVE to identify a valid location for the file.
Problems were identified while planning for the RESTORE statement. Previous
messages provide details.
RESTORE DATABASE is terminating abnormally.
您能否指导我如何使用SQlser2012R2中的新数据库恢复数据库
还原示例代码：
using (SqlConnection con = new SqlConnection(ConnectionString))
{
con.Open();
string UseMaster = "USE master";
SqlCommand UseMasterCommand = new SqlCommand(UseMaster, con);
UseMasterCommand.ExecuteNonQuery();
int iReturn = 0;
// If the database does not exist then create it.
string strCommand = string.Format("SET NOCOUNT OFF; SELECT COUNT(*) FROM master.dbo.sysdatabases where name=\'{0}\'", DatabaseName);
using (SqlCommand sqlCmd = new SqlCommand(strCommand, con))
{
iReturn = Convert.ToInt32(sqlCmd.ExecuteScalar());
}
if (iReturn == 0)
{
SqlCommand command = con.CreateCommand();
command.CommandText = "CREATE DATABASE " + DatabaseName;
command.ExecuteNonQuery();
}
ServerConnection serverConnection = new ServerConnection(con);
Microsoft.SqlServer.Management.Smo.Server srv = new Microsoft.SqlServer.Management.Smo.Server(serverConnection);
string Alter1 = @"ALTER DATABASE [" + DatabaseName + "] SET Single_User WITH Rollback Immediate";
SqlCommand Alter1Cmd = new SqlCommand(Alter1, con);
Alter1Cmd.ExecuteNonQuery();
string Restore = @"RESTORE Database [" + DatabaseName + "] FROM DISK = N'" + fileName + @"' WITH FILE = 1, NOUNLOAD, REPLACE, STATS = 10";
SqlCommand RestoreCmd = new SqlCommand(Restore, con);
RestoreCmd.ExecuteNonQuery();
string Alter2 = @"ALTER DATABASE [" + DatabaseName + "] SET Multi_User";
SqlCommand Alter2Cmd = new SqlCommand(Alter2, con);
Alter2Cmd.ExecuteNonQuery();
}
答案 0 :(得分：0)
以下代码的略微修改版本正在形成我。
string connectionString = ConfigurationManager.ConnectionStrings["TESTConnectionString"].ConnectionString;
using (SqlConnection con = new SqlConnection(connectionString))
{
con.Open();
string DatabaseName = "TEST";
string fileName = "TEST.bak";
string UseMaster = "USE master";
SqlCommand UseMasterCommand = new SqlCommand(UseMaster, con);
UseMasterCommand.ExecuteNonQuery();
int iReturn = 0;
// If the database does not exist then create it.
string strCommand = string.Format("SET NOCOUNT OFF; SELECT COUNT(*) FROM master.dbo.sysdatabases where name=\'{0}\'", DatabaseName);
using (SqlCommand sqlCmd = new SqlCommand(strCommand, con))
{
iReturn = Convert.ToInt32(sqlCmd.ExecuteScalar());
}
if (iReturn == 0)
{
SqlCommand command = con.CreateCommand();
command.CommandText = "CREATE DATABASE " + DatabaseName;
command.ExecuteNonQuery();
}
ServerConnection serverConnection = new ServerConnection(con);
Microsoft.SqlServer.Management.Smo.Server srv = new Microsoft.SqlServer.Management.Smo.Server(serverConnection);
string Alter1 = @"ALTER DATABASE [" + DatabaseName + "] SET Single_User WITH Rollback Immediate";
SqlCommand Alter1Cmd = new SqlCommand(Alter1, con);
Alter1Cmd.ExecuteNonQuery();
string Restore = @"RESTORE Database [" + DatabaseName + "] FROM DISK = N'" + fileName + @"' WITH FILE = 1, NOUNLOAD, REPLACE, STATS = 10";
SqlCommand RestoreCmd = new SqlCommand(Restore, con);
RestoreCmd.ExecuteNonQuery();
string Alter2 = @"ALTER DATABASE [" + DatabaseName + "] SET Multi_User";
SqlCommand Alter2Cmd = new SqlCommand(Alter2, con);
Alter2Cmd.ExecuteNonQuery();
}
答案 1 :(得分：0)
我在Asp.net应用程序中使用过这个解决方案。我的备份＆amp;还原目标已修复。刚刚使用File Browse控件获取备份文件名。使用前此解决方案只需添加一些 dll 。您可以从设置SQL Server的路径中获取这些dll。我的SQL Server位于 D：\ Program Files（x86）\ Microsoft SQL Server。 所以我从 D：\ Program Files获取了dll （x86）\ Microsoft SQL Server \ 110 \ SDK \ Assemblies。
只需将以下 dll 文件包含在项目解决方案参考中即可。
我的SQL Server是2008 R2和2012 R2。在这两种情况下，此解决方案都可以正常工作。
using Microsoft.SqlServer.Management;
using Microsoft.SqlServer.Management.Smo;
using Microsoft.SqlServer.Management.Smo.Agent;
using Microsoft.SqlServer.Management.Smo.Broker;
using Microsoft.SqlServer.Management.Smo.Mail;
using Microsoft.SqlServer.Management.Smo.RegisteredServers;
using Microsoft.SqlServer.Management.Sdk.Sfc;
using Microsoft.SqlServer.Management.Common;
protected void btnDatabaseRestore_Click(object sender, EventArgs e)
{
try
{
string fileName = fileBrowsingForBackup.FileName; // Browse The Backup File From Device
string restorePath = string.Empty, userName = string.Empty, password = string.Empty, serverName = string.Empty, databaseName = string.Empty;
string backFileName = string.Empty, dataFilePath = string.Empty, logFilePath = string.Empty;
databaseName = "innboard20151215020030";// For Example Restore File Name innboard20151215020030.bak
restorePath = Server.MapPath(@"~/DatabaseBackup/"); // I used the folder for Restore The Database
dataFilePath = restorePath;
logFilePath = restorePath;
restorePath += databaseName + ".bak"; // Get the Backup File Path
databaseName = "innboard20151215020031"; // I want to Restore The Database name as "innboard20151215020031"
//Get The Database Server Name, UserId, Passsword
string encryptedConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["InnboardConnectionString"].ConnectionString;
string decryptedConnectionString = Cryptography.Decrypt(encryptedConnectionString);
string[] wordConnectionString = decryptedConnectionString.Split(';');
string mInitialCatalog = wordConnectionString[0];
string mDataSource = wordConnectionString[1];
string mUserId = wordConnectionString[2];
string mPassword = wordConnectionString[3];
string mInitialCatalogValue = mInitialCatalog.Split('=')[1];
string mDataSourceValue = mDataSource.Split('=')[1];
string mUserIdValue = mUserId.Split('=')[1];
string mPasswordValue = mPassword.Split('=')[1];
userName = mUserIdValue;
password = mPasswordValue;
serverName = mDataSourceValue;
// Call The Database Restore Method
RestoreDatabase(databaseName, restorePath, serverName, userName, password, dataFilePath, logFilePath);
CommonHelper.AlertInfo(innboardMessage, "Restore Database Succeed.", "success");
}
catch (Exception ex)
{
CommonHelper.AlertInfo(innboardMessage, ex.InnerException.ToString(), "error");
}
}
// Database Restore Method
public void RestoreDatabase(String databaseName, String filePath, String serverName, String userName, String password, String dataFilePath, String logFilePath)
{
try
{
//Action Type
Restore sqlRestore = new Restore();
BackupDeviceItem deviceItem = new BackupDeviceItem(filePath, DeviceType.File);
sqlRestore.Devices.Add(deviceItem);
sqlRestore.Database = databaseName;
ServerConnection connection = new ServerConnection(serverName, userName, password);
Server sqlServer = new Server(connection);
Database db = sqlServer.Databases[databaseName];
sqlRestore.Action = RestoreActionType.Database;
//Create The Restore Database Ldf & Mdf file name
String dataFileLocation = dataFilePath + databaseName + ".mdf";
String logFileLocation = logFilePath + databaseName + "_Log.ldf";
db = sqlServer.Databases[databaseName];
RelocateFile rf = new RelocateFile(databaseName, dataFileLocation);
// Replace ldf, mdf file name of selected Backup file (in that case innboard20151215020030.bak)
System.Data.DataTable logicalRestoreFiles = sqlRestore.ReadFileList(sqlServer);
sqlRestore.RelocateFiles.Add(new RelocateFile(logicalRestoreFiles.Rows[0][0].ToString(), dataFileLocation));
sqlRestore.RelocateFiles.Add(new RelocateFile(logicalRestoreFiles.Rows[1][0].ToString(), logFileLocation));
sqlRestore.ReplaceDatabase = true;
sqlRestore.SqlRestore(sqlServer);
db = sqlServer.Databases[databaseName];
db.SetOnline();
sqlServer.Refresh();
}
catch (Exception ex)
{
throw;
}
}