server|备份|恢复|数据|数据库 SQLDMO(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 { ///<summary> /// DbOper类的构造函数///作者：Shadow ///</summary> private DbOper() { } ///<summary> /// 数据库备份 ///</summary> 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(); } } ///<summary> /// 数据库恢复 ///</summary> 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(); } } }
