PLEASE NOTE: CAL licences do not require technical activation or activation software. The licences are supplied with a serial number to provide evidence, in the event of an audit by Microsoft, that the CALs for the devices or users in use are legitimate and comply with the Microsoft Services Agreement. This product refers to CAL service (Client Access License) to be able to grant users and devices the right to access Microsoft server software installed on a machine. SQL Server 2019 (15.x) builds on previous releases to grow SQL Server as a platform that gives you choices of development languages, data types, on-premises or cloud environments, and operating systems. SQL Server 2019 (15.x) introduces Big Data Clusters for SQL Server. It also provides additional capability and improvements for the SQL Server database engine, SQL Server Analysis Services, SQL Server Machine Learning Services, SQL Server on Linux, and SQL Server Master Data Services. SQL Server 2019 features: SQL Server Dat