Accessing data on any source (relational, XML, file system), from anywhere using a variety of languages (ASP.NET, PHP, Java) via a platform of any size (mobile to enterprise), has become a necessity in modern business operations. The Open Data Protocol, (OData) an emerging standard for querying data (and updating) over the Web, will assume a central role.
In relation to this, Microsoft has made available OData service on its SQL Azure Labs (a developer preview) portal for accessing data on SQL Azure over the Web. This service is REST-based. In this section, data on a SQL Azure database will be accessed using this service. You need to have a SQL Azure account to work with this section.