1. A method to integrate a web service external to a database into the database, comprising: receiving a query at the database describing the web service that is external to the database using a web address, wherein the web service provides an application service, wherein the database is at a first computer, wherein the web service executes at a second computer, and wherein the first computer and the second computer are coupled via an Internet; invoking the web service that is external to the database with an invoking mechanism within the database, wherein the web service is described by a web services description language; performing, with the web service, at least one of finding data outside of the database, returning data to the database, and invoking a business process described by a Web Services Flow Language; and executing the query using a response returned by the web service.