Microsoft SQL Server 2017 – 1 User CAL
To obtain software legally, a Client Access License or (CAL) may be needed. A CAL is not a piece of software; but rather, a license that allows the user the right to access the services of the software.
Applies to SQL Server Editions: Standard & Enterprise.
MS SQL Server 2017 User CALs allow for a User to access the SQL Database no matter the devices they’re using. User CALs are more cost effective if each User needs to access the server from different work stations, locations, or devices.
If you need to have external users such as a contractor accessing the database, you will need to purchase a User CAL for each contractor. These CALs can then be moved to another contractor when they are no longer on the job.