SQL Server is a relational database management system (RDBMS) developed by Microsoft. Its main components include:

• Database Engine: Core service for storing, processing, and securing data
• SQL Server Agent: Handles job scheduling and automation
• SQL Server Reporting Services (SSRS): For creating and managing reports
• SQL Server Integration Services (SSIS): For data integration and transformation
• SQL Server Analysis Services (SSAS): For data mining and analytics
• SQL Server Management Studio (SSMS): Primary management and development tool