This screen can help you to test your data source database connectivity.
Test connection checks if a database connection can be established and displays some database information.
Execute SQL executes an SQL query you enter against the database.
You can see a database operation output or an error message at the bottom of the screen.
Show history displays a list of queries you have executed.
Please consider using Show options to limit the number of records returned by you query for not to waste your system resources.