Business Intelligence Edition Aimed towards organizations that need corporate business intelligence and self-service capabilities but do not require the full online transactional processing (OLTP) performance and scalability found in the Enterprise edition. Standard Edition The Standard edition is aimed towards departmental databases and limited business-intelligence applications that are typically seen in smaller organizations or departments. All capabilities of the Datacenter edition (which was included in previous versions of SQL Server but is now retired) are in the Enterprise edition of SQL Server 2014. Data management and business intelligence platform providing enterprise class scalability, high availability, and security for running mission-critical applications. The three principal editions of SQL Server 2014 are: Enterprise Edition Considered the premium offering, the Enterprise edition is aimed towards large-scale data centers and data warehouse solutions.
Here are the different editions available for SQL Server 2014. You could also download an evaluation copy which allows you to trial SQL Server 2014 for 180 days.
If you are looking for a free database management system, you will need to choose one of the Express editions or the Compact edition. The edition you choose will depend on your (or your organization's) requirements. SQL Server 2014 comes in three principal editions and three specialized editions. An overivew of the available editions of SQL Server 2014.