Transporting Databases
- Generalize the transportable tablespace feature
- Data subsets can easily be distributed from a data warehorsing enviroment to data marts,which are usually on smaller platforms.
- A database can be migrated from one platform to another very quickly.
Database Transportation Procedure:Source System Conversion
Open database in READ ONLY mode and Compatible=10.0.0 or higer
Database Transportation Procedure:Target System Conversion
Database Transportation :Considerations
- Create the password file on the target platform.
- ORAPWD
- Transport the BFILEs used in the source database
- The generated PFILE and transport script use OMF.
- Use DBNEWID to change the DBID.
数据库移植：移植到目标数据库之后，控制文件、临时文件、日志文件都是需要重新创建的.
源数据库表中
：BFILEs --其对象内容不是存储在数据库中，而是存储在操作系统当中
：数据库中的目录对象 --其目录对象对应的路径，存储在操作系统文件中
：外部表这些对象 --对象数据，存储在操作系统文件中
上述这些情况，在移植数据库之后，需要在目标数据库中重建.