tailieunhanh - SQL Server MVP Deep Dives- P10

SQL Server MVP Deep Dives- P10: Each year Microsoft invites all the MVPs from every technology and country to Redmond for an MVP Summit—all top secret—“don’t tweet what you see!” During the MVP Summit, each product team holds a series of presentations where they explain their technologies, share their vision, and listen to some honest feedback. | 316 Chapter 23 Mobile data strategies Unlike svcutil .exe this process will not generate a .config file to store the endpoint information. This information is stored in the client proxy code. To use this tool 1 Open a Visual Studio command window. 2 Change the directory to your mobile application directory. 3 Enter this command http machinename yourservice The preceding command should generate two source files. The one named after your service will contain the proxy class you will use to consume the WCF service you created. Add these classes to your project and compile the code. The code can be found at this book s website http SQLServerMVPDeepDives. Comparison Much thought has been given to creating solutions to ensure that data remains in sync during periods of connectivity. All of the techniques RDA MR and MSF allow data synchronization and replication however each has its own strengths and disadvantages as shown in table 6. Table 6 Key feature comparison of the three synchronization methodologies Key feature RDA MR MSF Synchronize by using services No No Yes Supports heterogeneous databases No No Yes Incremental change tracking No Yes Yes Conflict detection and resolution No Yes Yes Easily create data views on the client No No Yes Automatically initialize schema and data Yes Yes Yes Supports large data sets Yes Yes Yes Query processor is locally available Yes Yes Yes Automatically propagate schema changes No Yes No Automatically repartition data No Yes No Use on devices Yes Yes Yes Summary Which replication strategy you use is up to you but if you are looking for a robust developer-centric scalable solution the MSF should be your choice. Notice the comparison in table 6. MSF replaces the functionality in RDA with an enhanced plan and Please purchase PDF Split-Merge on to remove this watermark. Summary 317 copies the functionality of MR. If you require a DBA-centric approach with little code to set up

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