Microsoft® SQL Server 2012 Unleashed

Understanding SQL Database Editions

SQL Database comes in two editions: Web and Business. The Web edition is targeted at small-to-medium (usually application- or website-specific) data-usage scenarios. It has two maximum size options: 1GB or 5GB. Its maximum size can increased in 1GB increments up to 5GB. The business edition, more appropriate for data supporting multiple applications, starts with a maximum size of 10GB, and can be increased in 10GB increments up to 50GB, then increased again in 50GB increments up to 150GB.

After you select a size limit for your database, this is the maximum size it can grow. SQL Database will never automatically expand your database or change your edition to fit new growth, although you can achieve this manually, ...