List and describe the three specialized editions of SQL Server 2012.

What will be an ideal response?

Developer Edition-The Developer Edition includes all the features and functionality offered by the Enterprise Edition; however, use of the Developer Edition is strictly restricted to development and testing only. The Developer Edition is the only specialized edition that can be upgraded directly to an Enterprise license.

Express Edition-The Express Edition is a free, entry-level database offering basic functionality; although memory is limited to 1 GB and database size is constrained to 10 GB,it is an economical choice for those seeking an introduction to SQL Server or those with limited needs for functionality and capacity.

Web Edition-The Web Edition is targeted at hosted, Internet-facing deployments; this edition enables an organization to leverage the benefits of SQL Server 2012, exchanging the up-front hardware and software costs for ongoing variable costs. Amazon Web Services is an example of a service provider offering this option.