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Book Overview & Buying
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Table Of Contents
Microsoft SQL Azure Enterprise Application Development
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SQL Azure has a four-layered architecture, a Client Layer followed by a Services Layer, a Platform Layer, and finally the Infrastructure Layer. A schematic of the architecture is shown in the following diagram:

The Infrastructure Layer has all the associated hardware in the Microsoft Data Center as described in Chapter 1, Cloud Computing and Microsoft Azure Services Platform, managed automatically by the SQL Azure Fabric. The Platform Layer, which is above the Infrastructure Layer, has all the SQL Server clusters managed by the fabric as well as the Management Services. The Services Layer above the Platform Layer does all of the business logic, provisioning, connection routing, billing, and so on. The Client Layer above the Platform Layer can be at the client site or at the client's hosted site with all the applications that need access to SQL Azure.
Microsoft client technologies such as ODBC, ADO.NET, residing in the client site (or, in the Windows Azure Platform...
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