Microsoft SQL Server 2022 is a component of the Microsoft Intelligent Data Platform, which integrates operational databases, analytics, and data governance.
Unlike an operating system (OS), SQL Server is a relational database management system (RDBMS) developed by Microsoft. Its main function is to manage and store structured data, process queries, and provide tools for data analysis and reporting. SQL Server operates on top of an operating system, such as Windows or Linux, and interacts with it to carry out its database-related functions.
In this approach, you purchase a server license for each physical server where SQL Server is installed. Additionally, Client Access Licenses (CALs) are required for each user or device accessing the SQL Server.
This model licenses SQL Server based on the number of cores (physical or virtual) in the server. CALs are not required when using this licensing model.