We are delighted to announce the general availability (GA) of Azure SQL Data Sync! Azure SQL Data Sync allows you to synchronize data between Azure SQL Database and any other SQL endpoints unidirectionally or bidirectionally. It enables hybrid SQL deployment and allows local data access from both Azure and on-premises application.
It also allows you to deploy your data applications globally with a local copy of data in each region, and keep data synchronized across all the regions. It will significantly improve the application response time and reliability by eliminating the impact of network latency and connection failure rate.
Read about it in the Azure blog.