I installed Oracle 11g on my computer.
When I export data from Oracle 10g, I get the following error code. I have translated the error in parenthesis.
EXP-00008: 遇到 ORACLE 错误 904 (encouter oracle error 904)
ORA-00904: "POLTYP": 标识符无效 (POLTYP: is not valid )
EXP-00000: 导出终止失败 (export fail)
Does someone know why? I believe it is ok to export from Oracle 10g using Oracle 11g client.
Best Answer
Unfortunately not, you cannot export from a 10g database with the 11g client. You can, though, use a dump file from a 10g database (exported with the 10g client) to import into an 11g database (with the 11g client).
Alternatively you can use the newer datapump functionality, and if you create a database link from 11g to 10g you can even transfer the data directly between them without needing to create an intermediate dump file at all.