How exactly does the SQL Unlimited license work?
The SQL Unlimited expansion is installed on 4D Server, allowing it to accept multiple SQL connections from third-party applications, without using up your 4D Client licenses. The only limit is the physical capacity of your machine to effectively handle multiple SQL processes, based on the number and power of its processors. The SQL Unlimited Expansion license is sold for servers with up to two processor cores. For more powerful servers, you can buy additional licenses corresponding to the number of processor cores on your machine.