C# 备份和恢复SQL Server数据库代码

 

QLDMO(SQL Distributed Management Objects，SQL分布式管理对象)封装了Microsoft SQL Server数据库中的对象。SQLDMO是Microsoft SQL Server中企业管理器所使用的应用程序接口，所以它可以执行很多功能，其中当然也包括对数据库的备份和恢复。 
SQLDMO由Microsoft SQL Server自带的SQLDMO.dll提供，由于SQLDMO.dll是一个COM对象（有关COM的概念，请参看我的COM与COM+技术那篇文章），所以大家在用之前必须在.Net项目中添加对它的引用。 
下面是用C#语言书写的用于Microsoft SQL Server数据库备份和恢复的类：
public  sealed  class  DbOper 
{ 
     ///

     /// DbOper类的构造函数
///作者：Shadow
     ///

     private DbOper() 
     { 
     } 
 
     ///

     /// 数据库备份 
     ///

     public  static  void DbBackup() 
     { 
          SQLDMO.Backup oBackup = new SQLDMO.BackupClass(); 
          SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass(); 
         try
         { 
              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 = "数据库备份"; 
              oBackup.Initialize = true; 
              oBackup.SQLBackup(oSQLServer); 
         } 
         catch
         { 
              throw; 
         } 
          finally
         { 
              oSQLServer.DisConnect(); 
         } 
     } 
 
     ///

     /// 数据库恢复 
     ///

     public  static  void DbRestore() 
     { 
          SQLDMO.Restore oRestore = new SQLDMO.RestoreClass(); 
          SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass(); 
         try
         { 
              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; 
         } 
          finally
         { 
              oSQLServer.DisConnect(); 
         } 
     } 
}

 

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