Microsoft SQL Server 2012 (often abbreviated as SQL Server 2012 or MSSQL 2012) is the latest version of Microsoft's SQL database server software. It includes new features and upgraded functionality from its predecessor, SQL Server 2008 R2, went RTM on March 6th, 2012 and to general release on April 1st, 2012.
SQL Server 2012 is available in several "mainstream" editions, as well as some "special" editions not widely available for wide, such as a Development edition, an Azure edition and a Massively Parallel Processing Edition.
The mainstream editions are:
- Enterprise Edition
- Business Intelligence Edition
- Standard Edition
- Express Edition
- Web Edition
- Compact Edition
The complete feature set of SQL Server 2012 is massive, and probably too big to list, but Microsoft has a large page devoted to the topic, and includes feature comparison across the various mainstream editions. SQL Server 2012 adds new features focused on increasing the availability and scalability of the SQL Server product line, most notably a "AlwaysOn High Availability" feature, a dedicated Disaster Recovery feature, "scale-out reads" functionality and database mirroring capabilities.