csharp: SQL Server 2005 Database Backup and Restore using C#

1.第一种方式: using SQLDMO;//Microsoft SQLDMO Object Library 8.0

 /// <summary>
        /// 数据库的备份
        /// 涂聚文注:数据库的备份和实时进度显示代码：(远程备份在数据库原本地,如果在数据库安装的电脑上备份,就可以自行选择文件夹地址,不能备份在客户端的电脑上)
        /// 20150205
        /// 默认: C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Backup (我装了2000,20005)
        /// </summary>
        /// <param name="ServerName"></param>
        /// <param name="UserName"></param>
        /// <param name="Password"></param>
        /// <param name="strDbName"></param>
        /// <param name="strFileName"></param>
        /// <param name="pgbMain"></param>
        /// <returns></returns>
        public bool BackUPDB(string ServerName, string UserName, string Password, string strDbName, string strFileName, ProgressBar pgbMain)
        {

            PBar = pgbMain;
            SQLDMO.SQLServer svr = new SQLDMO.SQLServerClass();
            try
            {
                svr.Connect(ServerName, UserName, Password);
                SQLDMO.Backup bak = new SQLDMO.BackupClass();
                bak.Action = SQLDMO.SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;// 0;
                SQLDMO.BackupSink_PercentCompleteEventHandler pceh = new SQLDMO.BackupSink_PercentCompleteEventHandler(Step);
                bak.PercentComplete += pceh;
                bak.BackupSetDescription = "数据库备份";
                bak.Files = strFileName;
                bak.Database = strDbName;
                bak.Initialize = true;
                bak.SQLBackup(svr);

                return true;
            }
            catch (Exception err)
            {
                throw (new Exception("备份数据库失败" + err.Message));
                //return false ;
                //MessageBox.Show("备份数据库失败"+err.Message);
            }
            finally
            {
                svr.DisConnect();
            }
        }

        /// <summary>
        /// 数据库的恢复的代码：
        /// </summary>
        /// <param name="ServerName"></param>
        /// <param name="UserName"></param>
        /// <param name="Password"></param>
        /// <param name="strDbName"></param>
        /// <param name="strFileName"></param>
        /// <param name="pgbMain"></param>
        /// <returns></returns>
        public bool RestoreDB(string ServerName, string UserName, string Password, string strDbName, string strFileName, ProgressBar pgbMain)
        {
            PBar = pgbMain;
            SQLDMO.SQLServer svr = new SQLDMO.SQLServerClass();
            try
            {
                svr.Connect(ServerName, UserName, Password);
                SQLDMO.QueryResults qr = svr.EnumProcesses(-1);
                int iColPIDNum = -1;
                int iColDbName = -1;
                for (int i = 1; i <= qr.Columns; i++)
                {
                    string strName = qr.get_ColumnName(i);
                    if (strName.ToUpper().Trim() == "SPID")
                    {
                        iColPIDNum = i;
                    }
                    else if (strName.ToUpper().Trim() == "DBNAME")
                    {
                        iColDbName = i;
                    }
                    if (iColPIDNum != -1 && iColDbName != -1)
                        break;
                }

                for (int i = 1; i <= qr.Rows; i++)
                {
                    int lPID = qr.GetColumnLong(i, iColPIDNum);
                    string strDBName = qr.GetColumnString(i, iColDbName);
                    if (strDBName.ToUpper() == strDbName.ToUpper())
                        svr.KillProcess(lPID);
                }

                SQLDMO.Restore res = new SQLDMO.RestoreClass();
                res.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database; //0;
                SQLDMO.RestoreSink_PercentCompleteEventHandler pceh = new SQLDMO.RestoreSink_PercentCompleteEventHandler(Step);
                res.PercentComplete += pceh;
                res.Files = strFileName;

                res.Database = strDbName;
                res.ReplaceDatabase = true;
                res.SQLRestore(svr);
                return true;
            }
            catch (Exception err)
            {
                throw (new Exception("恢复数据库失败,请关闭所有和该数据库连接的程序！" + err.Message));
                //return false ;
                //MessageBox.Show("恢复数据库失败,请关闭所有和该数据库连接的程序！"+err.Message);
            }
            finally
            {
                svr.DisConnect();
            }
        }

2.第二种方式:

https://msdn.microsoft.com/en-us/library/microsoft.sqlserver.management.smo.backup.aspx

https://msdn.microsoft.com/en-us/library/microsoft.sqlserver.management.smo.restore.aspx

/// <summary>
    /// https://msdn.microsoft.com/en-us/library/microsoft.sqlserver.management.smo.backup.aspx
    /// https://msdn.microsoft.com/en-us/library/microsoft.sqlserver.management.smo.restore.aspx
    /// </summary>
    public class RestoreHelper
    {
        /// <summary>
        ///
        /// </summary>
        public RestoreHelper()
        {

        }
        /// <summary>
        /// 还原数据库
        /// 涂聚文
        /// </summary>
        /// <param name="databaseName"></param>
        /// <param name="filePath"></param>
        /// <param name="serverName"></param>
        /// <param name="userName"></param>
        /// <param name="password"></param>
        /// <param name="dataFilePath"></param>
        /// <param name="logFilePath"></param>
        public void RestoreDatabase(String databaseName, String filePath, String serverName, String userName, String password, String dataFilePath, String logFilePath)
        {
            try
            {
                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;
                String dataFileLocation = dataFilePath + databaseName + ".mdf";
                String logFileLocation = logFilePath + databaseName + "_Log.ldf";
                db = sqlServer.Databases[databaseName];
                RelocateFile rf = new RelocateFile(databaseName, dataFileLocation);

                sqlRestore.RelocateFiles.Add(new RelocateFile(databaseName, dataFileLocation));
                sqlRestore.RelocateFiles.Add(new RelocateFile(databaseName + "_log", logFileLocation));
                sqlRestore.ReplaceDatabase = true;
                sqlRestore.Complete += new ServerMessageEventHandler(sqlRestore_Complete);
                sqlRestore.PercentCompleteNotification = 10;
                sqlRestore.PercentComplete += new PercentCompleteEventHandler(sqlRestore_PercentComplete);

                sqlRestore.SqlRestore(sqlServer);

                db = sqlServer.Databases[databaseName];

                db.SetOnline();

                sqlServer.Refresh();
            }
            catch (SqlServerManagementException ex)
            {
                ex.Message.ToString();
            }
        }

        public event EventHandler<PercentCompleteEventArgs> PercentComplete;
        /// <summary>
        ///
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void sqlRestore_PercentComplete(object sender, PercentCompleteEventArgs e)
        {
            if (PercentComplete != null)
                PercentComplete(sender, e);
        }

        public event EventHandler<ServerMessageEventArgs> Complete;
        /// <summary>
        ///
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void sqlRestore_Complete(object sender, ServerMessageEventArgs e)
        {
            if (Complete != null)
                Complete(sender, e);
        }
    }

 /// <summary>
    ///
    /// </summary>
    public class BackupHelper
    {
        /// <summary>
        ///
        /// </summary>
        public BackupHelper()
        {

        }
        /// <summary>
        /// 备份数据库
        /// 涂聚文
        ///
        /// </summary>
        /// <param name="databaseName"></param>
        /// <param name="userName"></param>
        /// <param name="password"></param>
        /// <param name="serverName"></param>
        /// <param name="destinationPath"></param>
        public bool BackupDatabase(String databaseName, String userName, String password, String serverName, String destinationPath)
        {
            bool isok = false;
            try
            {
                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);
                isok = true;
            }
            catch (SqlServerManagementException ex)
            {
                ex.Message.ToString();
                isok = false;
            }

            return isok;
        }
    }