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Microsoft® SQL Server 2012 Unleashed by Alex T. Silverstein, Chris Gallelli, Paul T. Bertucci, Ray Rankins

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Understanding Service Broker Constructs

As a way of introducing the Service Broker constructs you’ll be using, Figure 50.1 shows the interrelations between the constructs expounded upon in the upcoming subsections.

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FIGURE 50.1 Service Broker concepts illustrated.

Figure 50.1 illustrates the fact that a dialog is a conversation between two services. These services exchange typed (or untyped) messages by sending them to queues according to the rules of a contract. Each service can have a service program activated by Service Broker to receive messages from a queue. Every conversation belongs to a conversation group. Messages are always sent with ...

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