Jun 1, 1970 CE
Relational model published
Edgar F. Codd publishes 'A Relational Model of Data for Large Shared Data Banks,' laying theoretical foundation for relational databases and SQL. #contemporary #technology
Chronological Storyline (30 Milestones)
1974 CE
System R project begins
IBM's System R project begins, developing the first implementation of SQL (initially called SEQUEL) as a relational database query language. #contemporary #technology
1979 CE
Oracle V2 released
Relational Software, Inc. (later Oracle) releases Oracle V2, the first commercial SQL-based RDBMS, beating IBM to market. #contemporary #technology
1983 CE
IBM DB2 for MVS released
IBM releases DB2 for MVS, its flagship relational database, standardizing SQL across mainframe environments. #contemporary #technology
1986 CE
SQL-86 standardized
ANSI standardizes SQL as SQL-86, the first official SQL standard, promoting interoperability among database systems. #contemporary #technology
1987 CE
Sybase SQL Server released
Sybase releases its first SQL Server, a high-performance RDBMS for Unix, later influencing Microsoft SQL Server. #contemporary #technology
1989 CE
SQL Server 1.0 co-developed
Microsoft, Sybase, and Ashton-Tate co-develop SQL Server 1.0 for OS/2, marking Microsoft's entry into the database market. #contemporary #technology
1993 CE
SQL Server 4.2 for NT
Microsoft SQL Server 4.2 for Windows NT is released, breaking from Sybase and becoming a standalone product. #contemporary #technology
May 23, 1995 CE
MySQL 1.0 released
MySQL 1.0 is released by Michael Widenius and David Axmark, offering a fast, open-source SQL database for web applications. #contemporary #technology
1996 CE
PostgreSQL 6.0 released
PostgreSQL 6.0 is released, evolving from the POSTGRES project and adding SQL support, becoming a leading open-source ORDBMS. #contemporary #technology
1998 CE
DB2 Universal Database for Linux released
IBM releases DB2 Universal Database for Linux, expanding its reach beyond mainframes and Unix. #contemporary #technology
Aug 17, 2000 CE
SQLite 1.0 released
SQLite 1.0 is released by D. Richard Hipp, providing a self-contained, serverless, zero-configuration SQL database engine. #contemporary #technology
2000 CE
Oracle9i with RAC released
Oracle releases Oracle9i, introducing Real Application Clusters (RAC) for high availability and scalability. #contemporary #technology
Nov 1, 2005 CE
SQL Server 2005 released
Microsoft SQL Server 2005 is released, featuring native XML support, CLR integration, and significant performance improvements. #contemporary #technology
Oct 1, 2008 CE
Sun acquires MySQL AB
Sun Microsystems acquires MySQL AB for $1 billion, later leading to community forks like MariaDB due to licensing concerns. #contemporary #technology
Feb 5, 2009 CE
MariaDB forked from MySQL
MariaDB is forked from MySQL by original developers, aiming to remain open-source and add new storage engines. #contemporary #technology
Sep 20, 2010 CE
PostgreSQL 9.0 with streaming replication
PostgreSQL 9.0 is released, adding built-in streaming replication, a major milestone for high availability. #contemporary #technology
2010 CE
Amazon RDS launched
Amazon launches Amazon RDS, offering managed SQL databases (MySQL, Oracle, SQL Server) in the cloud, driving DBaaS adoption. #contemporary #technology
Mar 1, 2012 CE
SQL Server 2012 with AlwaysOn
SQL Server 2012 is released, introducing AlwaysOn Availability Groups and columnstore indexes for analytics. #contemporary #technology
Jun 1, 2014 CE
Google Cloud SQL launches
Google Cloud SQL launches, providing managed MySQL and PostgreSQL services, competing with AWS RDS. #contemporary #technology
Oct 1, 2015 CE
PostgreSQL 9.5 with UPSERT
PostgreSQL 9.5 is released, adding UPSERT (INSERT ... ON CONFLICT) and Row Level Security. #contemporary #technology
Nov 1, 2016 CE
SQLite 3.16.0 with JSON1
SQLite 3.16.0 is released, adding JSON1 extension for JSON support, enhancing its utility in mobile and embedded apps. #contemporary #technology
Oct 2, 2017 CE
SQL Server 2017 on Linux
Microsoft releases SQL Server 2017, adding support for Linux and Docker containers, breaking Windows-only tradition. #contemporary #technology
Oct 1, 2018 CE
MySQL 8.0 released
Oracle releases MySQL 8.0, with a new data dictionary, window functions, and improved JSON support. #contemporary #technology
Oct 3, 2019 CE
PostgreSQL 12 performance improvements
PostgreSQL 12 is released, featuring significant performance improvements for partitioning and query parallelism. #contemporary #technology
Nov 1, 2020 CE
MariaDB 10.5 with system-versioned tables
MariaDB 10.5 is released, adding system-versioned tables and Oracle PL/SQL compatibility, targeting enterprise users. #contemporary #technology
Sep 30, 2021 CE
PostgreSQL 14 pipeline mode
PostgreSQL 14 is released, adding pipeline mode for libpq and improved performance for high-concurrency workloads. #contemporary #technology
Nov 16, 2022 CE
SQLite 3.40.0 improvements
SQLite 3.40.0 is released, adding support for the 'PRAGMA integrity_check' improvements and better JSON functions. #contemporary #technology
May 25, 2023 CE
SQL Server 2022 with Azure integration
Microsoft SQL Server 2022 is released, featuring Azure integration, ledger tables, and improved query intelligence. #contemporary #technology
Sep 26, 2024 CE
PostgreSQL 17 released
PostgreSQL 17 is released, with major improvements in vacuum performance, incremental backup, and SQL/JSON support. #contemporary #technology