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Getting Errors while using IMPDP command in UNIX

Raavi NaveenMay 14 2012 — edited May 17 2012

Hi All,
My work involves Refreshing of DB with latest Data. For this i am using IMPDP command to import the data. But Every time during refresh i will get errors saying like "oracle Generated Errors Oracle Not available".

I don't know what is the reason for getting this error, and that too my db goes down after this error. Again i will startup the db , and i will try my luck to complete the process.

so please tell me what are the actual problems that might cause the IMPDP to be failed.

with one advise , i have stopped my listener and done the importing, Interestingly this time IMPDP works without errors. But this is also not always working.

But i feel that every time starting and stopping the listener is not the correct solution.

so please help me in this regard.

Regards
Naveen R.