Question

我需要将SQL 2005数据库备份（使用C＃）到* .bak文件。从该文件，我试图在同一个服务器上恢复到一个新的数据库。

备份工作正常，然后我的C＃代码调用还原方法，它似乎工作，直到它最终“超时”。我检查了“innerExceptions”，他们发现RESTORE使它达到90％，然后返回异常。

以下是我用于备份和恢复的代码。

有人可以让我知道我哪里出错吗？它必须是我可以设置的某个超时参数，但我不知道它是什么或如何做。

public class JRBackupRestoreDB
{
    public static void BackupDatabase(String databaseName, String userName, String password, String serverName, String destinationPath)
    {
        Backup sqlBackup = new Backup();

        sqlBackup.Action = BackupActionType.Database;
        sqlBackup.BackupSetDescription = "ArchiveDataBase:" + DateTime.Now.ToShortDateString();
        sqlBackup.BackupSetName = "Archive";

        sqlBackup.Database = databaseName;

        BackupDeviceItem deviceItem = new BackupDeviceItem(destinationPath, DeviceType.File);
        ServerConnection connection = new ServerConnection(serverName, userName, password);
        Server sqlServer = new Server(connection);

        Database db = sqlServer.Databases[databaseName];

        sqlBackup.Initialize = true;
        sqlBackup.Checksum = true;
        sqlBackup.ContinueAfterError = true;

        sqlBackup.Devices.Add(deviceItem);
        sqlBackup.Incremental = false;

        sqlBackup.ExpirationDate = DateTime.Now.AddDays(3);
        sqlBackup.LogTruncation = BackupTruncateLogType.Truncate;

        sqlBackup.FormatMedia = false;

        sqlBackup.SqlBackup(sqlServer);
    }

    public static void RestoreDatabase(String databaseName, String filePath,
    String serverName, String userName, String password,
    String dataFilePath, String logFilePath)
    {
        Restore sqlRestore = new Restore();

        BackupDeviceItem deviceItem = new BackupDeviceItem(filePath, DeviceType.File);
        sqlRestore.Devices.Add(deviceItem);
        sqlRestore.Database = databaseName;

        ServerConnection connection = new ServerConnection(serverName, userName, password);
        Server sqlServer = new Server(connection);

        Database db = sqlServer.Databases[databaseName];
        sqlRestore.Action = RestoreActionType.Database;
        String dataFileLocation = dataFilePath + databaseName + ".mdf";
        String logFileLocation = logFilePath + databaseName + "_Log.ldf";
        db = sqlServer.Databases[databaseName];
        RelocateFile rf = new RelocateFile(databaseName, dataFileLocation);

        System.Data.DataTable logicalRestoreFiles = sqlRestore.ReadFileList(sqlServer);
        sqlRestore.RelocateFiles.Add(new RelocateFile(logicalRestoreFiles.Rows[0][0].ToString(), dataFileLocation));
        sqlRestore.RelocateFiles.Add(new RelocateFile(logicalRestoreFiles.Rows[1][0].ToString(), logFileLocation));

        sqlRestore.SqlRestore(sqlServer);
        db = sqlServer.Databases[databaseName];
        db.SetOnline();
        sqlServer.Refresh();
    }

}

Answer 1

您是否尝试使用ServerConnection.StatementTimeout设置值以查看会发生什么？

MSDN参考here。

Answer 2

这在普通的sql中很容易做到......

您是否考虑过这样尝试？您只需要编写sql脚本或过程来执行它然后运行它。这就是我们所做的（针对不同的情况，但类似）：

backup database {{DATABASE NAME HERE}}
to disk = N'{{FILE_NAME_HERE}}'
    with
        name = N'{{BACKUP_DATABASE_NAME_HERE}}'
GO

restore database {{NEW_DATABASE_NAME}}
from disk = N'{{FILE_NAME_HERE}}'
    with
        file = 1
go

备份和还原SQL数据库

2 个答案: