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android device to backup data on local server



I am working on the android application that would perform functionality and ultimately save the data(Highly Confidential) in a local server, I am a newbie, I need ideas from you people in the shape of steps that i need to follow for the implementation. I cant expose the main main idea but the thing is store the customer data (in the database placed on server) on the server via android tablets, there will be multiple tablets feeding the data in parallel. I will appreciate if someone would suggest the appropriate tutorials (for webservice creation/usage etc)




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