gConnectionManager allows editing connection strings in the configuration file in a visual mode:
You can also enable or disable the existing connection strings.
Click the "..." button to edit the connection string.
Select a database connection provider at the first step:
Enter the information required to connect to a database:
The different database servers have specific features. Click the Help button or the Examples link to get the context help during the connecting.
The wizard tests the connection in the background and activates the Finish button if the connection succeeds.
If the Finish button is disabled, click the Test Connection button to test the connection.