In memory bulk import/export

What is the best way to write a program which takes data from an in-memory buffer and insert it into an oracle database version 7.2 under Windows NT and HP-UX. I will be inserting about 2 million rows a day and performance is critical. I do not want to store the data into a file and then execute the imp72 program because I would be waisting time writing to a file temporarily.

I would like to go straight from memory into the oracle instance with no copying of data in between into some temporary buffer
(other than on a row by row or group of rows basis).

Thanks

Hector
(hector_at_manu.com)

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