tailieunhanh - Introducing Windows Azure- P50

Introducing Windows Azure- P50:The cloud platform is getting more and more attractive to the computing world. Today, service-oriented architecture (SOA) and aspect-oriented programming (AOP) techniques are widely used in enterprise solutions. A question an IT management team or a software development team may ask is, what is the next trend going to be? Cloud computing seems to be the right answer. | C H A P T E R 8 SQL Azure At the end of July 2009 Microsoft announced SQL Azure community technology preview CTP and aimed to go live in November 2009 for SQL Azure and to phase out SQL Data Services SDS . SQL Azure and SDS are both cloud-based services but are built using different data models. With the introduction of SQL Azure Azure has reached a breakthrough point leaving this new platform in a good position to be accepted by the enterprise and for winning marking share since SQL Azure is the first cloud service completely supporting the relational database model. SQL Azure is fully committed to supporting T-SQL SQL query stored procedures data views and so on. SQL Azure supports the traditional Windows user password security model. The first release of SQL Azure is almost fully compatible with all existing relational development tools and IDEs such as SQL Server Management Studio SSMS and Visual Studio. SQL Azure allows all SQL developers and IT staff to seamlessly migrate from an onpremises environment to a cloud environment with almost no learning curve. All knowledge and skills for SQL developers and IT staff can be applied to SQL Azure. This should remove a big concern from when the Azure framework was announced in October 2008 regarding potential job losses for the IT industry worries brought on because the infrastructure and data storage hardware for an organization no longer need to exist in the organization . SQL Azure supports PHP which makes SQL Azure more friendly to Internet applications. The most important thing is that SQL Azure is the first platform supporting the rational database model and database as a service running in the cloud. The major changes are not in the physical domain but in the logical virtual domain. Since SQL Server and T-SQL have been in the market for decades there is a lot of information that can be found on them. This chapter does not cover SQL or T-SQL based upon the assumption that you know SQL. Instead this chapter .

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