While Microsoft officially uses core-based licensing for Enterprise, various retail and volume licensing options exist: Go to product viewer dialog for this item. SQL Server 2017 Enterprise 16-Core
: The "Per Core" model allows for an unlimited number of users or devices to connect to the server without needing additional Client Access Licenses (CALs) . Available SQL Server 2017 Enterprise Options Sql server 2017 enterprise 1 processor
: A minimum of 4 core licenses is required for each physical processor (socket) . Sql server 2017 enterprise 1 processor