在C#中運用SQLDMO備份和恢複Microsoft SQL Server資料庫

     SQLDMO(SQL Distributed Management Objects，SQL分散式管理物件)封裝了Microsoft SQL Server資料庫中的對象。SQLDMO是Microsoft SQL Server中企業管理器所使用的應用程式介面，所以它可以執行很多功能，其中當然也包括對資料庫的備份和恢複。

      SQLDMO由Microsoft SQL Server內建的SQLDMO.dll提供，由於SQLDMO.dll是一個COM對象，所以大家在用之前必須在.NET項目中添加對它的引用，如所示：

下面是用C#語言書寫的用於Microsoft SQL ServerDatabase Backup和恢複的類：

using System;

namespace DbService
{
 /// <summary>
 /// DbOper類,主要實現對Microsoft SQL Server資料庫的備份和恢複
 /// </summary>
 public sealed class DbOper
 {
  /// <summary>
  /// DbOper類的建構函式
  /// </summary>
  private DbOper()
  {
  }

  /// <summary>
  /// Database Backup
  /// </summary>
  public static void DbBackup()
  {
   try
   {
    SQLDMO.Backup oBackup = new SQLDMO.BackupClass();
    SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
    oSQLServer.LoginSecure = false;
    oSQLServer.Connect("localhost", "sa", "1234");
    oBackup.Action = SQLDMO.SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;
    oBackup.Database = "Northwind";
    oBackup.Files = @"d:\Northwind.bak";
    oBackup.BackupSetName = "Northwind";
    oBackup.BackupSetDescription = "Database Backup";
    oBackup.Initialize = true;
    oBackup.SQLBackup(oSQLServer);
   }
   catch
   {
    throw;
   }
  }

  /// <summary>
  /// 資料庫恢複
  /// </summary>
  public static void DbRestore()
  {
   try
   {
    SQLDMO.Restore oRestore = new SQLDMO.RestoreClass();
    SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
    oSQLServer.LoginSecure = false;
    oSQLServer.Connect("localhost", "sa", "1234");
    oRestore.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;
    oRestore.Database = "Northwind";
    oRestore.Files = @"d:\Northwind.bak";
    oRestore.FileNumber = 1;
    oRestore.ReplaceDatabase = true;
    oRestore.SQLRestore(oSQLServer);
   }
   catch
   {
    throw;
   }
  }
 }
}

來源：CSDN