Sql Server Evolution

Early Versions

SQL Server 1.0 (1989)

• Inception: The first version released for OS/2, focusing on client-server architecture and basic relational database functionality.

  SQL Server 4.2 (1993)

• Transition to Windows NT: Ported to the Windows NT platform, introducing Stored Procedures, Triggers, and ACID properties.

• Milestones and Major Versions

  SQL Server 6.0 (1995)

• Major Improvements: Introduced OLAP (Online Analytical Processing) capabilities and enhancements to indexing and query optimization.

  SQL Server 7.0 (1998)

• Shift to Enterprise-Level DBMS: Integrated OLAP and data warehousing capabilities with a stronger focus on scalability and business intelligence.

  SQL Server 2000 (2000)

• Advancements in Business Intelligence: Introduced Analysis Services (SSAS) and Data Transformation Services (DTS).

  SQL Server 2005 (2005)

• Integration Services: Debut of SQL Server Integration Services (SSIS) and the introduction of .NET framework integration.

  SQL Server 2008 (2008)

• Enhanced Scalability and Security: Significant improvements in scalability, data compression, and Transparent Data Encryption (TDE).

  SQL Server 2012 (2012)

• Columnstore Indexes: Introduced for high-performance data warehousing and enhanced availability with AlwaysOn.

  SQL Server 2014 (2014)

• In-Memory OLTP: Introduced In-Memory OLTP for significant performance enhancements, along with backup and encryption improvements.

  SQL Server 2016 (2016)

• Stretch Database: Enabled seamless extension of databases to Azure for cost-effective storage and enhanced Always Encrypted for better security.

  SQL Server 2017 (2017)

• Cross-Platform Support: Introduced support for Linux operating systems and enhanced performance and security features.

  SQL Server 2019 (2019)

• Big Data Integration: Enhanced support for big data clusters, container deployment, and intelligent query processing.

  Azure SQL Database

• Cloud-Native Database: Evolved as a cloud-based database service offering various deployment options, including Azure SQL Database and Azure SQL Managed Instance.