Why webservices

I have used webservices to integrate between .NET and Navision 2009 but I dont know the purpose of using webservices instead of just using a sql query and connecting via dataadaptor object using a dataset.

why use webservice when it can be done via data objects in .net
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Moizsaif123Asked:
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Guy Hengel [angelIII / a3]Connect With a Mentor Billing EngineerCommented:
the main interest using webservices is "abstraction". if navision decides to change db structure, your query will start failing, while their webservices are updated along, and will continue to work.
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