How to improve the performance of the import

I'm converting a database of its current WE8ISO88591 character set AL32UTF8
I use NLS_LENGTH_SEMANTICS to TANK so I don't have to increase the length of the column.

I followed the instructions in the Oracle:
144808.1
313175.1

Except import that takes too long.

I took a full database export WE8ISO8859p1 and now its importation in AL32UTF8.

It is always difficult to prove slow source; but I think it has to do something with NLS_LENGTH_SEMANTICS. On the same
Server; If the new database was in WE8ISO8859P1, a 5 million row table import took 2 hours; but in Al32UTF8 with NLS_LENGTH_SEMANTICS it takes 1 day!

No idea how to improve the performance of the import.

DOUBLE WIRE!

Please, don't post duplicate discussions.

Mark this thread ANSWER and continue to use your original thread where you are already helped.

You have NOT given the info that has been ask in your other thread.
Re: NLS_LENGTH_SEMANTICS = CHAR import is too slow

Tags: Database

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