如何将高版本DMP导入到低版本数据库中

检查 export/import 工具和数据库的版本
on souce database
Run the lower version catexp.sql script before exporting.
用低版本的export工具，导出源数据库的数据
用低版本的import工具，导入目标数据库的数据
例如：
8.1.7 7.3.4
在8.1.7数据库上运行7.3.4 的catexp.sql
7.3.4 client :exp system/manager@8.1.7 ….
7.3.4 client :imp system/manager@7.3.4 …

小结：

To Export From Import Into Use Export/Import Utilities For
===========================================================
Release 9.2
Release 9.0.1 Release 7.3.4 Release 7.3.4(*)
Release 8.1.7
Release 8.0.6

Release 9.2
Release 9.0.1 Release 8.0.6 Release 8.0.6
Release 8.1.7

Release 9.2
Release 9.0.1 Release 8.1.7 Release 8.1.7

Release 9.2 Release 9.0.1 Release 9.0.1