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Erik Ejlskov Jensen is a .NET Data Developer, and SQL Server Compact MVP. He is also the author of a number of tools for SQL Server Compact. He has been working in IT for too many years, and enjoy blogging (http://erikej.blogspot.com) and tweeting (@ErikEJ) Data Development related news and tips. Erik Ejlskov is a DZone MVB and is not an employee of DZone and has posted 62 posts at DZone. You can read more from them at their website. View Full User Profile

An Alternative to Merge Replication with SQL Server and SQL Server Compact – Zumero for SQL Server

04.13.2014
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While looking for a migration path for a customer currently using Merge Replication with SQL Server and Windows Mobile, I came across the recently released solution from Zumero, Zumero for SQL Server. As mentioned in my previous blog post, Merge Replication between SQL Server Compact and SQL Server 2014 is no longer possible, and in addition, SQL Server Compact 3.5 SP2 only supports a limited number of client platforms (Windows Mobile/CE and Windows desktop). Microsoft is promoting Azure Mobile Services with Offline support, but for obvious reasons, this solution does not work for on premise databases.

Zumero for SQL Server enables you to synchronize any mobile device with tables on a central SQL Server, using essentially the same components that we know from Merge Replication:

1: Configuration of tables to be synchronized, and added metadata/tracking to those. Before: Using SQL Server Management Studio to create a Merge Publication with articles (tables)
Now: Using ZSS Manager to create a DBFile with Tables

2: An IIS based agent, that exposes a http(s) endpoint for performing the sync process. 
Before: Configure Web Synchronization Wizard
Now: ZSS Server

3: Client library for performing sync. 
Before: System.Data.SqlServerCe.SqlCeReplication class, part of the SQL Server Compact ADO.NET provider
Now: Zumero Client SDK and SQLite.

using Zumero;

ZumeroClient.Sync(
  "/path/to/sqlite.db",   // full path to local db file
  null,
  "http://MY_ZUMERO_SERVER:8080",
  "test",                 // remote DBFile name
  null,
  null,
  null);

To get started testing out Zumero, simply follow the instructions here: http://zumero.com/get-started/ or start by watching the short, introductory videos here: http://zumero.com/howto/

Notice that Zumero works with any edition of SQL Server 2008 R2 Express or higher/later. Zumero Server is not free, but works with the free SQL Server Express for small scale solutions.

On the client side, the following impressive list client Operating Systems are supported:

Android (native and PhoneGap)
iOS (native and PhoneGap)
Xamarin
Windows, WinRT and Windows Phone 8
Mac OS X
Linux (Ubuntu 12.04+, Fedora 17+)

In my next blog post, I will be doing an interview:  “Hard Talk” with Eric Sink, Zumero founder.

Disclaimer: I am simply a Zumero user, and not affiliated in any way.

Published at DZone with permission of Erik Ejlskov Jensen, author and DZone MVB. (source)

(Note: Opinions expressed in this article and its replies are the opinions of their respective authors and not those of DZone, Inc.)