既存のデータを更新するか、クライアントデータベースからDB1中央データベースに新しいデータを挿入する必要がありDB2ます。両方とも同じスキーマを保持し、両方のデータベースが同じマシンに存在します。
更新は双方向ではありません。DB1変更をclient（ ）からserver（）に反映させたいだけですDB2。
クライアントデータベース（DB1）は、のバックアップデータベース（mdfファイルとldfファイルで構成される完全データベースバックアップ）に他なりませんDB2。バックアップデータベース（DB1）には、同期時にすでに変更されたデータがあります。
では、C＃.NETをプログラムで使用するにはどうすればよいですか？サンプルコードを教えてください。
私はそれについてグーグルで検索し、Microsoft Syn Frameworkを見ましたが、C＃でプログラムで使用する方法がわかりません。サンプルコードを手伝ってもらえますか？英語でごめんなさい。
前もって感謝します。
8175 次
2 に答える
0
これにより、同期フレームワークでこれを行う方法が示されます。チュートリアル：SQLServerとSQLExpressの同期
しかし、プログラムで、またはボタンをクリックしてこれを実行する必要がある理由を完全に納得させることはできません。
他のデータベースに変更を適用するために許容できるレイテンシー/遅延の量と必要なものに応じて、ミラーリング、レプリケーション、トリガーなどの他のオプションを確認できます。
于 2012-12-12T14:19:01.580 に答える
0
以下のデータベースミラーの概念を使用して、ミラーリングを実現するための手順について説明しました。
Step 1: Create encryption key, certificate and end-points on Principal Instance
/* Execute this against the Principal Instance */
USE MASTER
GO
CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'Password!'
GO
CREATE CERTIFICATE HOST_PRIN_cert
WITH SUBJECT = 'HOST_PRIN certificate',
START_DATE = '01/07/2009'
GO
CREATE ENDPOINT End_Mirroring
STATE = STARTED
AS TCP (LISTENER_PORT = 5022, LISTENER_IP = ALL)
FOR DATABASE_MIRRORING
(
AUTHENTICATION = CERTIFICATE HOST_PRIN_cert,
ENCRYPTION = REQUIRED ALGORITHM RC4,
ROLE = ALL
)
GO
BACKUP CERTIFICATE HOST_PRIN_cert
TO FILE = 'D:\certificate\HOST_PRIN_cert.cer'
GO
Step 2: Create encryption key, certificate and end-points on Mirror Instance
/* Execute this against the Mirror Instance */
USE master
GO
CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'Password!'
GO
CREATE CERTIFICATE HOST_MIRR_cert
WITH SUBJECT = 'HOST_MIRR certificate',
START_DATE = '01/07/2009'
GO
CREATE ENDPOINT End_Mirroring
STATE = STARTED
AS TCP (LISTENER_PORT = 5023, LISTENER_IP = ALL)
FOR DATABASE_MIRRORING
(
AUTHENTICATION = CERTIFICATE HOST_MIRR_cert,
ENCRYPTION = REQUIRED ALGORITHM RC4,
ROLE = ALL
)
GO
BACKUP CERTIFICATE HOST_MIRR_cert
TO FILE = 'D:\certificate\HOST_MIRR_cert.cer';
GO
Step 3: Create login, user and associate certificate with user on Principal Instance
/*
* Execute this against the Principal Instance. The HOST_MIRR_cert.cer
* needs to be copied on the Principal Server.
*/
USE MASTER
GO
/*
* We are creating a SQL Login here. For Windows logins,
* use the Grant Login instead of Create Login
*/
CREATE LOGIN HOST_MIRR_login WITH PASSWORD = 'Password!'
GO
CREATE USER HOST_MIRR_user FOR LOGIN HOST_MIRR_login
GO
CREATE CERTIFICATE HOST_MIRR_cert
AUTHORIZATION HOST_MIRR_user
FROM FILE = 'D:\certificate\HOST_MIRR_cert.cer'
GO
GRANT CONNECT ON ENDPOINT::End_Mirroring TO [HOST_MIRR_login]
GO
Step 4: Create login, user and associate certificate with user on Mirror Instance
/*
* Execute this against the Mirror Instance. The HOST_PRIN_cert.cer
* needs to be copied on the Mirror Server.
*/
USE MASTER
GO
/*
* We are creating a SQL Login here. For Windows logins,
* use the Grant Login instead of Create Login
*/
CREATE LOGIN HOST_PRIN_login WITH PASSWORD = 'Password!'
GO
CREATE USER HOST_PRIN_user FOR LOGIN HOST_PRIN_login
GO
CREATE CERTIFICATE HOST_PRIN_cert
AUTHORIZATION HOST_PRIN_user
FROM FILE = 'D:\certificate\HOST_PRIN_cert.cer'
GO
GRANT CONNECT ON ENDPOINT::End_Mirroring TO [HOST_PRIN_login]
GO
Step 5: Create encryption key, certificate and end-points on Witness Instance
/* Execute this against the Witness Instance */
USE MASTER
GO
CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'Password!'
GO
CREATE CERTIFICATE HOST_WITT_cert
WITH SUBJECT = 'HOST_WITT certificate',
START_DATE = '01/07/2009'
GO
CREATE ENDPOINT End_Mirroring
STATE = STARTED
AS TCP (LISTENER_PORT = 5024, LISTENER_IP = ALL)
FOR DATABASE_MIRRORING
(
AUTHENTICATION = CERTIFICATE HOST_WITT_cert,
ENCRYPTION = REQUIRED ALGORITHM RC4,
ROLE = Witness
)
GO
BACKUP CERTIFICATE HOST_WITT_cert
TO FILE = 'D:\certificate\HOST_WITT_cert.cer'
GO
Step 6: Create login, user and associate certificate with user on Principal Instance
/*
* Execute this against the Principal Instance. The HOST_WITT_cert.cer
* needs to be copied on the Principal Server.
*/
USE MASTER
GO
/*
* We are creating a SQL Login here. For Windows logins,
* use the Grant Login instead of Create Login
*/
CREATE LOGIN HOST_WITT_login WITH PASSWORD = 'Password!'
GO
CREATE USER HOST_WITT_user FOR LOGIN HOST_WITT_login
GO
CREATE CERTIFICATE HOST_WITT_cert
AUTHORIZATION HOST_WITT_user
FROM FILE = 'D:\certificate\HOST_WITT_cert.cer'
GO
GRANT CONNECT ON ENDPOINT::End_Mirroring TO [HOST_WITT_login]
GO
Step 7: Create login, user and associate certificate with user on Mirror Instance
/*
* Execute this against the Mirror Instance. The HOST_WITT_cert.cer
* needs to be copied on the Mirror Server.
*/
USE MASTER
GO
/*
* We are creating a SQL Login here. For Windows logins,
* use the Grant Login instead of Create Login
*/
CREATE LOGIN HOST_WITT_login WITH PASSWORD = 'Password!'
GO
CREATE USER HOST_WITT_user FOR LOGIN HOST_WITT_login
GO
CREATE CERTIFICATE HOST_WITT_cert
AUTHORIZATION HOST_WITT_user
FROM FILE = 'D:\certificate\HOST_WITT_cert.cer'
GO
GRANT CONNECT ON ENDPOINT::End_Mirroring TO [HOST_WITT_login]
GO
Step 8: Create login, user and associate certificate with user on Witness Instance
/*
* Execute this against the Witness Instance. The HOST_PRIN_cert.cer
* and HOST_MIRR_cert.cer needs to be copied on the Witness Server.
*/
USE MASTER
GO
/*
* We are creating a SQL Login here. For Windows logins,
* use the Grant Login instead of Create Login
*/
CREATE LOGIN HOST_PRIN_login WITH PASSWORD = 'Password!'
GO
CREATE USER HOST_PRIN_user FOR LOGIN HOST_PRIN_login
GO
CREATE CERTIFICATE HOST_PRIN_cert
AUTHORIZATION HOST_PRIN_user
FROM FILE = 'D:\certificate\HOST_PRIN_cert.cer'
GO
GRANT CONNECT ON ENDPOINT::End_Mirroring TO [HOST_PRIN_login]
GO
/*
* We are creating a SQL Login here. For Windows logins,
* use the Grant Login instead of Create Login
*/
CREATE LOGIN HOST_MIRR_login WITH PASSWORD = 'Password!'
GO
CREATE USER HOST_MIRR_user FOR LOGIN HOST_MIRR_login
GO
CREATE CERTIFICATE HOST_MIRR_cert
AUTHORIZATION HOST_MIRR_user
FROM FILE = 'D:\certificate\HOST_MIRR_cert.cer'
GO
GRANT CONNECT ON ENDPOINT::End_Mirroring TO [HOST_MIRR_login]
GO
Step 9: Create the Mirrored Database on the Mirror Server using backups from the Principal Server
/*
* Execute this against the Principal Instance.
*/
USE MASTER
GO
BACKUP DATABASE MirrorDB
TO DISK = 'D:\Backups\MirrorDB_FullBackup.bak'
GO
BACKUP LOG MirrorDB
TO DISK = 'D:\Backups\MirrorDB_LogBackup.trn'
GO
/*
* Copy MirrorDB_FullBackup.bak and MirrorDB_LogBackup.trn to the
* Mirror Server.
* Execute this against the Mirror Instance.
*/
USE MASTER
GO
RESTORE DATABASE MirrorDB
FROM DISK = 'D:\Backups\MirrorDB_FullBackup.bak'
WITH NORECOVERY
GO
RESTORE LOG MirrorDB
FROM DISK = 'D:\Backups\MirrorDB_LogBackup.trn'
WITH NORECOVERY
GO
Step 10: Setup Mirroring
/*
* Execute this against the Mirror Instance.
*/
ALTER DATABASE MirrorDB
SET PARTNER = 'TCP://<<your principal server name here>>:5022'
GO
/*
* Execute this against the Principal Instance.
*/
ALTER DATABASE MirrorDB
SET PARTNER = 'TCP://<<your mirror server name here>>:5023'
GO
ALTER DATABASE MirrorDB
SET WITNESS = 'TCP://<<your witness server name here>>:5024'
GO
At this point your Database Mirroring should be up and running. You can use the Database Mirroring Monitor to verify the setup as well as to monitor the Synchronization status.
于 2012-12-12T10:18:53.267 に答える