SQL Azure Data Sync is a Microsoft Windows Azure web service that provides data synchronization capabilities for SQL Azure databases. SQL Azure Data Sync allows data to be synchronized between on-premises SQL Server databases and SQL Azure databases; in addition, it can also keep multiple SQL Azure databases in sync.
The Data Sync Agent is installed on a local server and runs as a Windows service. It can be installed on a database server or on any server that can communicate with the SQL Server databases. The SQL Server databases to be synchronized are registered with the Agent; it then securely transfers data changes between the SQL Server databases and the SQL Azure Data Sync service.
Download: SQL Azure Data Sync Agent