I'm developing a WPF application, which connects MS SQL2008 database remotely.
The app communicates with the database by Linq-to-SQL. pretty handy.
However, because of the slow database server, I'm trying to use local database caching.
"VS2010 > Add Item > Local database cache" wizard could be a solution, but it uses DataSet and SQL Compact(*.sdf).
I found Linq-To-SQL cannot generate classes from the SQL COMPACT edition!
(when I drag tables, error pops up and says 'unsupported data provider')
So, is there any solution to use Linq-to-SQL with local database cache?
or is there any database sync method played with Linq-to-SQL?
If you still want to go the sql compact way, Lightspeed is a linq-to-sql provider that supports a variety of data-sources. it includes mssql compact.
http://www.mindscapehq.com/products/lightspeed
The free version is sufficient for most projects, with an 8 model/class limit.
Ive used it as a linq provider for MySql and Sql Compact before and it's been great.
You can see everything it supports and how it compares to other existing systems like it here:
http://www.mindscapehq.com/products/lightspeed/comparing-lightspeed
the Local Database Cache Wizard only supports SQL Ce on the client side. if you have SQL Express/SQL Server on the client side, you can use Sync Framework still.
see following samples/tutorials using Sync Framework:
Synchronizing SQL Server and SQL Express
Database Sync:SQL Server and SQL Express 2-Tier
nevermind if it mentions SQLExpress, the SQLSyncProvider referenced in the code should work against SQL Express,SQL Server, and SQL Azure
Related
I have a ADO.net application which generates some data in regular intervals that is stored in a local SQL server. I want that database to sync with Microsoft azure SQL database automatically. What would be the best process to make it happen?
You have two options. One of them is SQL Data Sync which will sync you local database with an Azure SQL Database and viceversa. It is a bi-directional replication that works best with SQL Server 2008 R2 (and later) on-premises databases. This service is in preview and you can get started with it by visiting this documentation.
Your second option is Snapshot and one-way replication that works with SQL Server 2012 and later. You can get started with it on this documentation.
Hope this helps.
Ok so i know I'm fairly new to C# and MVC but I'm trying to use the code first approach of adding items to a database.
Now I have successfully created new entries to the database but when I go to SQL Server i cannot find the database or tables.
So my question is where is this data being stored as I can't see it in SQL Server like my other databases that I manually created?
My ConnectionString is:
Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\aspnet-Testing-20140809020449.mdf;Initial Catalog=aspnet-Testing-20140809020449;Integrated Security=True
LocalDb is the new server-less version of SQL Server that has similar features as SQL Express. I would describe it as a just-in-time version of SQL Server that is only running when needed.
In order to connect to it usng SQL Server Management Studio, you need to connect using the following connection string (assming SQL Server Version 11/2014 may change to 12 or higher in future versions):
Then you'll have access to the database.
[project_dir]\App_Data\aspnet-Testing-20140809020449.mdf
We have database SQL server 2008 (db A). For better performance we will use next SQL server 2008 databases with the one workgroup (db B, C, ...). These databases will contain only necessary records and will can save some special records. These all databases are always full SQL server, not express.
So we need to synchronize data from db A to db B, C. And then we need synchronize some data (with special sql query - for example only completed orders, not all) from db B to db A, from db C to db A, etc.
The synchronization should be console application.
I found some examples used MS Sync Framwork:
SyncOrchestrator but I don't know how to select only some tables and some records.
SyncTable but here I don't know how correct set RemoteProvider and LocalProvider to database SQL server 2008.
Is there any way how to solve it? Or how can I correct use sync?
Sorry for my english, it's not my native language.
Many thanks.
check out the walkthroughs here: http://msdn.microsoft.com/en-us/library/ff928700(v=SQL.110).aspx
(the same walkthrough is in the documentation if you download Sync Framework 2.1)
that should get you up and running with defining a scope for your selected tables with filtering applied and specifying both local and remote providers as well. While the walkthrough says synchronizing between Sql Server and Sql Express, you can use the same for Sql Server to Sql Server synchronization as Sql Express, Sql Server and Sql Azure uses the same SqlSyncProvider.
I would use SQL Server Replication http://msdn.microsoft.com/en-us/library/ms151198.aspx
Im implementing application in which there is local database which uses SQL CE. Each time app starts there has to be synchronization between local database and server database (to have new values in dictionary tables).
Problem is that mappings are different in sql ce and sql server 2008 when using entity framework.
Is it common problem ? is there any way to automate that ?
Do you know about any good pattern ?
thanks for help,
bye
You can use Merge replication, which supports (almost) all SQL Server 2008 datatypes.
Issues relating to EF seem to be unrelated, can you elaborate... You must create the model based on a SQL Compact database, you cannot use a model created against a SQL Server database with a SQL Compact database
Have you tried ADO.Net Synchronization framework? See here
I am developing an application in C#/WPF that requires a distributed data model, as it will have both online and offline access.
My current thoughts are to develop the first version of the application against SQL Server express and LINQ to SQL. Then use the schema to create a SQL Express Compact DB (and modify the connection string) for distribution.
Once that version is how I like it, I will add the "distributededness" to the application by creating a web service that the application syncs its local database with.
My questions are: is this a good approach? And will I run into problems by turning my reference to a "real" SQL server into a reference to a local self-contained SQL database file? I had issues trying to create LINQ to SQL with a compact DB reference, but I can't see how it is different then a reference to a "real" server.
Thanks
At the moment I am considering this:
http://www.mindscape.co.nz/products/lightspeed/
Then use LINQ to SQLITE for my application.
Are there any comments on this approach?