SQL Server

SQL Server is Microsoft's enterprise-grade relational database management system (RDBMS): it delivers industry-leading security, high-performance OLTP, and hybrid capabilities via Azure Arc.

SQL Server is the robust, high-performance RDBMS from Microsoft, consistently rated as one of the most secure databases available. It supports mission-critical workloads with features like Always On Availability Groups and accelerated query performance via Intelligent Query Processing. Deploy it anywhere: on-premises (Windows, Linux), in containers, or as a managed service (Azure SQL Database). The platform scales from the free Express Edition (up to 10GB) to Enterprise-level features, all managed with the familiar Transact-SQL (T-SQL) language. It’s the unified data platform for transactional processing (OLTP) and business intelligence (BI).

https://www.microsoft.com/en-us/sql-server/