SQL Server Offer Below Editions

1. Enterprise Edition
2. Developer Edition
3. Enterprise Evaluation Edition
4. Standard Edition
5. Business Intelligence
6. Express Edition

SQL Server Editions	Descriptions
Enterprise Editions	SQL Server Enterprise, the premium offering, delivers comprehensive high-end data center capabilities for demanding database and business intelligence requirements.
Developer Editions	All Enterprise features at very low price, can be used for non prod servers only
Enterprise Evaluation edition	All Enterprise feature in free for 180 days trial period
Standard Editions	Get core data management and business intelligence capabilities for non-critical workloads with minimal IT resources.
Business Intelligence Edition	SQL Server Business Intelligence delivers a comprehensive platform empowering organizations to build and deploy secure, scalable and manageable BI solutions.
Express Edition	This powerful database engine in a version tailored for redistribution and embedding. SQL Server Express includes 10GB of storage per database. In Express edition its easy to backup and restore to Microsoft Azure functionality, and compatibility with all editions of SQL Server and Microsoft Azure SQL Database so you can develop and deploy with confidence.

Difference Between SQL Server 2014 Editions