在C#中运用SQLDMO备份和恢复Microsoft SQL Server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,所以大家在用之前必须在.NET项目中添加对它的引用,如下图所示:
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:
using System;
namespace DbService { /// <summary> /// DbOper类,主要应用SQLDMO实现对Microsoft SQL Server数据库的备份和恢复 /// </summary> public sealed class DbOper { /// <summary> /// DbOper类的构造函数 /// </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(); } } } }
这段代码虽然很短,但是却很实用,希望能够对大家有所帮助:)
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