如何在.NET Core中还原SQL Server备份

Question

我想.bak使用.NET Core 还原SQL Server数据库().这是我在GitHub上的空网站,所以你可以看到当前的配置.

在完整的.NET Framework中恢复数据库非常简单 - 这可以在这里看到.

有没有办法直接从.NET Core中执行此操作,还是需要引用.NET Framework并使用.NET Framework类库？

无论我如何尝试,我都无法让它发挥作用.

编辑

我尝试添加SQLManagementObject,但不能.我在.NET Core 2.0上.

编辑2

我们的旧项目主要是ADO.NET.他们(广泛地)使用了以下我无法带入.NET Core Project的DLL:

• Microsoft.SqlServer.ConnectionInfo
• Microsoft.SqlServer.Smo
• Microsoft.SqlServer.SmoExtended
• Microsoft.SqlServer.Management.Sdk.Sfc

Answer 1

更新:使用.Net Core 2.0,您可以使用Microsoft.SqlServer.SqlManagementObjects(140.17265.0).SQL Server管理对象(SMO)框架 您可以在Windows和Linux下使用SQL SMO.

Microsoft.SqlServer.SqlManagementObjects依赖于System.Data.SqlClient(4.5.0)

简单的SMO备份示例:

            ServerConnection serverConnection = new ServerConnection("192.168.1.1", "user", "password");
            Server server = new Server(serverConnection);
            Database database = server.Databases["AdventureWorks"];
            Backup backup = new Backup();
            backup.Action = BackupActionType.Database;
            backup.BackupSetDescription = "AdventureWorks - full backup";
            backup.BackupSetName = "AdventureWorks backup";
            backup.Database = "AdventureWorks";

            BackupDeviceItem deviceItem = new BackupDeviceItem("AdventureWorks_Full_Backup.bak", DeviceType.File);
            backup.Devices.Add(deviceItem);
            backup.Incremental = false;
            backup.LogTruncation = BackupTruncateLogType.Truncate;
            backup.SqlBackup(server);

在.NetCore备份/恢复SQL Server数据库中,您可以使用常见的ADO.NET SqlConnection和SqlCommand对象.要自定义备份/恢复,您需要了解T-SQL BACKUP/RESTORE语句的语法.请咨询

RESTORE语句(T-SQL)

备份语句(T-SQL)

using System;
using System.Data;
using System.Data.SqlClient;

namespace BackupRestore
{
    class Program
    {
        static void Main(string[] args)
        {
            BackupDatabase("test", @"C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\Backup\test.bak");
            RestoreDatabase("test", @"C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\Backup\test.bak");
        }

        private static void RestoreDatabase(string databaseName, string backupPath)
        {
            string commandText = $@"USE [master];
    ALTER DATABASE [{databaseName}] SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
    RESTORE DATABASE [{databaseName}] FROM DISK = N'{backupPath}' WITH FILE = 1, NOUNLOAD, REPLACE, STATS = 5;
    ALTER DATABASE [{databaseName}] SET MULTI_USER;";

            SqlConnectionStringBuilder connectionStringBuilder = new SqlConnectionStringBuilder
            {
                DataSource = "localhost",
                InitialCatalog = "master",
                IntegratedSecurity = true
            };
            using (SqlConnection connection = new SqlConnection(connectionStringBuilder.ConnectionString))
            {
                connection.Open();
                connection.InfoMessage += Connection_InfoMessage;
                using (SqlCommand command = connection.CreateCommand())
                {
                    command.CommandText = commandText;
                    command.CommandType = CommandType.Text;
                    command.ExecuteNonQuery();
                }
            }
        }

        private static void BackupDatabase(string databaseName, string backupPath)
        {
            string commandText = $@"BACKUP DATABASE [{databaseName}] TO DISK = N'{backupPath}' WITH NOFORMAT, INIT, NAME = N'{databaseName}-Full Database Backup', SKIP, NOREWIND, NOUNLOAD,  STATS = 10";

            SqlConnectionStringBuilder connectionStringBuilder = new SqlConnectionStringBuilder
            {
                DataSource = "localhost",
                InitialCatalog = "master",
                IntegratedSecurity = true
            };
            using (SqlConnection connection = new SqlConnection(connectionStringBuilder.ConnectionString))
            {
                connection.Open();
                connection.InfoMessage += Connection_InfoMessage;
                using (SqlCommand command = connection.CreateCommand())
                {
                    command.CommandText = commandText;
                    command.CommandType = CommandType.Text;
                    command.ExecuteNonQuery();
                }
            }
        }

        private static void Connection_InfoMessage(object sender, SqlInfoMessageEventArgs e)
        {
            Console.WriteLine(e.Message);
        }
    }
}

要使用新名称(例如newtest)恢复数据库,需要执行next语句

RESTORE DATABASE [newtest] 
FROM  DISK = N'C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\Backup\test.bak' WITH  FILE = 1,  
MOVE N'test' TO N'C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\DATA\newtest.mdf',  
MOVE N'test_log' TO N'C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\DATA\newtest_log.ldf',  NOUNLOAD,  STATS = 5