Opensource Data Services Solution

Am looking for a product (both open source and commercial) which exposes database as Webservices (SOAP/REST). The product should allow CRUD operations across various tables. One of my colleagues suggested a product from Oracle (Oracle Data Services Integration).

Does anyone know of any open source or commercial products which provides this functionality? Open source products preferable.

Thanks !

Have you looked at OData?

SQL Server supports this protocol, as do many other products.