Microsoft SQL Server Compact 4.0
Microsoft SQL Server Compact 4.0 is a compact database that is embedded inside Nexus and other desktops around the world. It is ideal for also embedding in web applications. SQL Server Compact 4.0 provides developers a common programming model with other SQL Server editions. This is important for developing both native and managed applications. SQL Server Compact provides outstanding flexibility, but in a small footprint.
SQL Server 2014 Express Edition
Microsoft provides this for free! This powerful database engine is perfect for embedded applications or for redistribution with other solutions. Independent software vendors (ISV's) use it to build desktop applications. If you need support for greater than 10 GB databases, SQL Server Express is compatible with other editions of SQL Server.
SQL Server Standard Edition
Microsoft's robust data management and business intelligence database is ideal for departments and small workgroups. It supports common development tools for both on premise and cloud applications. This edition enables effective database management with minimal IT resources and it is compatible with other editions.
Above, are the first three offerings from Microsoft on SQL Server.
Microsoft SQL Server Web Edition
Microsoft's Web edition is a low total-cost-of-ownership option to host Web applications that provides scalability, affordability, and manageability capabilities for small to large scale Web initiatives.
SQL Server 2014 Business Intelligence Edition
Microsoft's Business Intelligence edition is for the BI intelligence community and delivers a comprehensive platform. This empowers organizations to build and deploy secure, scalable and manageable BI solutions. It has browser based data exploration and visualization, plus includes powerful integration capabilities.
SQL Server 2014 Enterprise Edition
Microsoft's SQL Server 2014 Enterprise edition delivers high-end datacenter capabilities with performance that has been enhanced for virtualization, business intelligence and integration capabilities. This enables high service levels for mission-critical workloads and end user access to data insights.
Above, are the next three offerings from Microsoft on SQL Server.