ALTER DATABASE 命令無法傳送至遠端伺服器執行個體 %1'。沒有變更資料庫鏡像組態。請確認伺服器已連接，然後重試。
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English version
The ALTER DATABASE command could not be sent to the remote server instance '%1'. The database mirroring configuration was not changed. Verify that the server is connected, and try again.
SQL Server