Oracle Premier、Extended、Sustaining Support的区别可以参考下表:

Key Features	Premier Support	Extended Support	Sustaining Support
Major Product and Technology Releases
Technical Support
Access to Knowledge Base
Updates and Fixes			Pre-existing
Security Alerts			Pre-existing
Critical Patch Updates			Pre-existing
Tax, Legal, and Regulatory Updates			Pre-existing
Upgrade Tools/Scripts			Pre-existing
Certification with most existing Oracle products
Certification with most existing third-party products/versions
Certification with most new third-party products/versions
Certification with most new Oracle products

更详细的关于各类软件的详细规定可以参考以下文档：

http://www.oracle.com/us/support/library/057419.pdf
http://www.oracle.com/us/support/library/tsp-soc-069318.pdf