SQL Server Express

Microsoft SQL Server Express
Developer(s)Microsoft
Stable release
SQL Server 2022 Express / November 4, 2019; 5 years ago (2019-11-04)
Written inC, C++
Operating systemMicrosoft Windows, Linux
Platform.NET Framework 4.0[1]
Available inEnglish, Chinese, French, German, Italian, Japanese, Korean, Portuguese (Brazil), Russian, Spanish
TypeRelational database management system
LicenseProprietary software[2]
Websitewww.microsoft.com

Microsoft SQL Server Express is a version of Microsoft's SQL Server relational database management system that is free to download, distribute and use. It comprises a database specifically targeted for embedded and smaller-scale applications. The product traces its roots to the Microsoft Database Engine (MSDE) product, which was shipped with SQL Server 2000. The "Express" branding has been used since the release of SQL Server 2005.

Microsoft SQL Server Express LocalDB is a version of Microsoft SQL Server Express, on-demand managed instance of the SQL Server engine. It is targeted to developers, and has the following restrictions: up to 10 GB database size and only local connections (network connections are not supported).[3][4][5]

  1. ^ "Hardware and Software Requirements for Installing SQL Server 2014 - SQL Server | Microsoft Docs". Msdn.microsoft.com. Retrieved 2019-04-03.
  2. ^ "About the SQL Server License Terms - SQL Server | Microsoft Docs". Msdn.microsoft.com. 2017-05-24. Retrieved 2019-04-03.
  3. ^ "What is LocalDB". Express DB. Retrieved 2021-11-01.
  4. ^ "Announcing SQL Server 2012 Express LocalDB RC0". Microsoft Docs. Microsoft. 2011-11-28. Retrieved 2021-11-01.
  5. ^ "Introducing LocalDB, an improved SQL Express". Microsoft. July 12, 2011. Retrieved July 11, 2023.