C#源码 备份和恢复数据库
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。
当然要用到 sqldmo 来做这个工作
找到 sqldmo.dll这个文件
C:\Program Files\Microsoft SQL Server\80\Tools\Binn\sqldmo.dll
用.Net框架提供的工具转成受托管代码
tlbimp sqldmo.dll /out: c:\SQLDMO.dll
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using System;
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namespace DbService
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{
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/// <summary>
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/// DbOper类,主要应用SQLDMO实现对Microsoft SQL Server数据库的备份和恢复
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/// </summary>
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public sealed class DbOper
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{
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/// <summary>
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/// DbOper类的构造函数
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/// </summary>
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private DbOper()
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{
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}
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/// <summary>
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/// 数据库备份
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/// </summary>
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public static void DbBackup()
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{
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SQLDMO.Backup oBackup = new SQLDMO.BackupClass();
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SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
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try
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{
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oSQLServer.LoginSecure = false;
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oSQLServer.Connect("localhost", "sa", "1234");
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oBackup.Action = SQLDMO.SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;
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oBackup.Database = "Northwind";
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oBackup.Files = @"d:\Northwind.bak";
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oBackup.BackupSetName = "Northwind";
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oBackup.BackupSetDescription = "数据库备份";
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oBackup.Initialize = true;
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oBackup.SQLBackup(oSQLServer);
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}
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catch
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{
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throw;
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}
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finally
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{
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oSQLServer.DisConnect();
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}
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}
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/// <summary>
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/// 数据库恢复
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/// </summary>
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public static void DbRestore()
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{
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SQLDMO.Restore oRestore = new SQLDMO.RestoreClass();
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SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
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try
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{
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oSQLServer.LoginSecure = false;
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oSQLServer.Connect("localhost", "sa", "1234");
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oRestore.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;
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oRestore.Database = "Northwind";
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oRestore.Files = @"d:\Northwind.bak";
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oRestore.FileNumber = 1;
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oRestore.ReplaceDatabase = true;
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oRestore.SQLRestore(oSQLServer);
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}
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catch
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{
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throw;
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}
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finally
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{
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oSQLServer.DisConnect();
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}
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}
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}
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}
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