SDF Viewer can create, view and edit SQL Server Compact, it is able to create, view and edit SQL Server Compact Edition version 3.1, 3.5 and 4.0 databases.

The simple way to create, view, edit or export the data in your Windows Mobile or Pocket PC devices SQLCE database, from the convenience of your Desktop. Run SQL commands on your SQLCE databases, and view the results instantly.

Features:
1. Runs on Windows 2000, XP, Vista, Windows 7
2. Works with SQL Server CE Version 3.1; 3.5 (SP1 & SP2)and 4.0 CTP1 databases - Auto Detection of Database Versions
3. Copies Database Files to and from your Windows Mobile Device
4. Opens SDF Database file on your PC
5. Creates New SQL Server Compact Edition Databases
6. View the Database and Index Structures
7. Create a New Tables, Rename, Drop or Modify Existing Tables
8. Add, Delete and Alter Data Columns
9. Create New Indexes
10. Add Single and Multiple Foreign Key Relationships
11. View, Sort, Add, Modify and Delete Data from Tables
12. View, Add and Change Image Columns
13. Create SQL Queries and Scripts, Drag & Drop Table and Column Names to Query
14. Open/Save/Run Scripts/Queries as *.sqlce files
15. Add, Change and Remove Database Passwords
16. Compact and Repair Databases
17. Upgrade Existing Databases to higher versions
18. Import and Export Tables to Excel XLS and XML formats
19. Import From SQL Server and SQL Server Express
20. Import Pictures into a Database
21. Script SQLCE Database Tables, Data, Indexes
22. Set an automatic backup of database files each time they are opened

Requirements:
* Microsoft SQL Server Compact (SQL CE)

The license of this software is Free Trial Software, the price is $45, you can free download and get a free trial.