来源: http://www.oracle.com/technologies/open-source/index.html         

            Oracle is committed to offering choice, flexibility, and a lower cost of computing for end users. By investing significant resources in developing, testing, optimizing, and supporting open source technologies such as Linux, PHP, Apache, Eclipse, Berkeley DB, Xen, and InnoDB, Oracle is clearly embracing and offering open source solutions as a viable choice for development and deployment. We cannot stress the importance of using open standards enough, whether in the context of open source or non-open source software.

             Today, many customers are using Oracle together with open source technologies in mission-critical environments and are reaping the benefits of lower costs, easier manageability, higher availability, and reliability along with performance and scalability advantages.

KEY OPEN SOURCE INITIATIVES

• Linux—Oracle's technical contributions to Linux enhance and extend enterprise-class capabilities, and Oracle Unbreakable Linux delivers enterprise-quality support for Linux at a lower cost.
• Xen—Oracle contributes heavily to feature development of Xen mainline software, is a member of the Xen Advisory Board, and hosted Xen Summit 2009 at Oracle. Part of Oracle VM, next generation server virtualization software, includes the Xen hypervisor.
• Eclipse—Oracle is a strategic developer and board member of the Eclipse Foundation, contributing developers and leadership to three Eclipse projects: Dali JPA Tools, JavaServer Faces (JSF), and BPEL; Oracle has also donated Oracle TopLink to the open source community.
• Berkeley DB—Oracle Berkeley DB is a family of open source, embeddable databases that allows developers to incorporate within their applications a fast, scalable, transactional database engine with industrial grade reliability and availability; it is the most widely used open source database in the world with deployments estimated at more than 200 million.
• PHP—Oracle is committed to enabling open source scripting language PHP for the enterprise with Zend Core for Oracle. Download your free copy of the Underground PHP and Oracle Manual which explains how to use the PHP scripting language with the Oracle Database, from installation through optimization and management.
• Open Source Tooling Projects—Oracle contributes to several open-source tooling projects, including Project Trinidad (ADF Faces), Eclipse, and Spring.
• InnoDB—Created by Oracle subsidiary Innobase OY, InnoDB is the leading transactional storage engine for the popular MySQL open source database.
• Free and Open Source Software—Everything you need to know about free and open source software from, and for, Oracle, including community projects, downloads, blogs, and more.