December 2013
Intermediate to advanced
1872 pages
153h 31m
English
book
Microsoft® SQL Server 2012 Unleashed
by Ray Rankins, Paul T. Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft® SQL Server 2012 Unleashed
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Subscriptions
A subscription is essentially a formal request and registration of that request for data that is being published. By definition, you subscribe to all articles of a publication.
When a subscription is being set up, you have the option of either having the data “pushed” to the subscriber server or “pulling” the data to the subscription server when it is needed. This is referred to as either a push subscription or pull subscription.
As shown in Figure 40.18, a pull subscription is set up and managed by the subscription server. The biggest advantage here is that pull subscriptions allow the system administrators of the subscription servers to choose what publications they will receive and when they receive them. With pull subscriptions, ...