TAILIEUCHUNG - Microsoft SQL Server 2008 R2 Unleashed- P229

Microsoft SQL Server 2008 R2 Unleashed- P229:SQL Server 2005 provided a number of significant new features and enhancements over what was available in SQL Server 2000. This is not too surprising considering there was a five-year gap between these major SQL Server 2008 is not as much of a quantum leap forward from SQL Server 2005 | 2244 CHAPTER 54 Managing Linked and Remote Servers partitioned views that can pull data together from multiple servers into a single view. For end-user queries that use these views it appears as if the data is coming from a single local table. For more information on distributed partitioned views see Chapter 27 Creating and Managing Views. This chapter provides an overview of linked servers in SQL Server 2008 along with a brief discussion of remote servers. As mentioned earlier remote servers and RPCs are legacy features that are still supported for backward compatibility. In other words you can still set up and use remote servers and RPCs but linked servers are much easier to set up and provide greater functionality. Keep in mind that Microsoft is also telling folks to convert any remote server implementations they currently have to linked server implementations. Deprecating remote servers was also announced in SQL Server 2005 however due to the outcry from many customers it was not dropped in SQL Server 2008. You can likely count on it not surviving another major release though. What s New in Managing Linked and Remote Servers With SQL Server 2008 there are no significant changes to the linked servers capabilities and there are virtually no changes in the remote servers area. Of the few changes for linked servers the following are the most significant Remote servers are being deprecated and this means system stored procedures such as sp_addserver sp_remoteoption sp_helpremotelogin and sp_addremotelogin will go away. System variable @@REMSERVER and server-wide settings such as SET REMOTE_PROC_TRANSACTIONS will also go away. The system stored procedure was introduced such as sp_setnetname to associate a remote or linked server name with the network name of the server that is remote not local . More DATA providers are now certified with Microsoft. This includes flat files DB2 Informix and Oracle providers used with linked servers. A bit more tightening has been done

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