I try to look for some tools to open a sample database attached with application development sample on the net. I have found that the file has an extension .sdf. It make me strange at first because I do not really know what that file extension would be. Would that possible a database file or just a flat file? It is exactly as what I thought, it is an extension file for an SQL Server Compact Edition. A sample of Northwind.sdf (SQL Compact Edition 3.5) file can be download from my backup here.
Microsoft SQL Server Compact (SQL CE) is a compact relational database produced by Microsoft for applications that run on mobile devices and desktops. Prior to the introduction of the desktop platform, it was known as SQL Server for Windows CE and SQL Server Mobile Edition
This guide is provide the step on how to open the file content using either extension is Visual Studio or standalone application call LINQPad. I made these to share with you all in case that you need to see the data, schema of that SQL Compact Edition look like.
Currently there are two possibility to open .sdf (SQL Compact Edition):
- Using Visual Studio toolbox
Here are the step to integrated into Visual Studio:
- Download SQL Server Compact/SQLite Toolbox for Visual Studio
- Install toolbox extension
Before installing it is a must to close your Visual Studio if you are currently open first otherwise you can not see the change effect to your IDE, then double click on the file you have just downloaded to proceed to the setup process.
- Install SQL Server Compact runtime
The Toolbox requires one of these SQL Server Compact runtime MSIs to be installed, if you want to connect to a SQL Server Compact database file:
Download 3.5 SP2 – installed with VS 2010
Download 4.0 SP1 – installed with VS 2012 (No runtimes are installed with VS 2013 and VS 2015)
- Open Visual Studio to see toolbox extension being installed
Once the toolbox is installed, now it is ready for the feature of opening *.sdf file extension in Visual Studio.