how to make database to synchronize while connect internet update database local machine and update server database data using local database in different muchine

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C#

C#4.0

Sir.
firstly thank you for later help me i am also submit my query and you give me answer shortly thank you for that

sir i am make desktop transport software which i m using back end database Sql server R2

sir client required my software use in different location like bhopal indore and devas sir i want to update my database from local machine on server database insert update delete status and perform task they also enable to use database while internet connect use database from server database ..

please help what to do sir