Oracle10g下载版和license版的不同:

Oracle Enterprise Manager 10g Database Control is designed for managing a single database, which can be either a single instance or a cluster database. The following premium functionality contained within this release of Enterprise Manager 10g Database Control is available only with an Oracle license:
　　
　　Database Diagnostics Pack
　　Performance Monitoring (Database and Host)
　　ADDM (Automated Database Diagnostic Monitor)
　　Automatic Workload Repository
　　Event Notifications: Notification Methods, Rules and Schedules
　　Event history/metric history (Database and Host)
　　Blackouts
　　
　　Database Tuning Pack
　　SQL Access Advisor
　　SQL Tuning Advisor
　　SQL Tuning Sets
　　Reorganize Objects
　　
　　Configuration Management Pack
　　Database and Host Configuration
　　Deployments
　　Patch Database and View Patch Cache
　　Patch staging
　　Clone Database
　　Clone Oracle Home
　　Search configuration
　　Compare configuration
　　Policies
　　
　　For a detailed description of this functionality and where it can be used within the product refer to the Oracle Database Licensing Information 10g document.
　　就是说以上列出的组件需要购买