This is where the BPEL (Business Process Execution Language for Web Services, also WS-BPEL or BPEL4WS) becomes important. BPEL allows composition of web services and is thus the top-down approach to SOA – the process oriented approach to SOA.
sqlREST exposes relational databases as REST style Web Service. Using HTTP and XML data can be queried, removed and altered. A Web Browser like Mozilla or MS Internet Explorer can be used to query.
sqlREST was initally a project just for learning how to implement a Web Service the RESTian way.
Features
Web Service enables almost every database with JDBC driver
Support for GET, POST, PUT and DELETE Methods
XML responses with XLink pointers
Links to foreign key tables are created automatically
Easy to install and configure
Fast implementation using the SAX API