How to read compressed files from unix on 10gR2 EE?

We have large historical data stored as text files on operating system and compressed because our free disk space is very limited. Rarely because of data quality or legal needs we need to read these information.
So I thought of unix pipes(mknod), reading while uncompressing through a pipe similar to this example; http://www.orafaq.com/faqunix.htm#EXPORT
but this method is very slow.
Is it possible to SELECT these compressed files, maybe a custom Oracle driver for external tables you may heard of?
Thank you.

There are no oracle drives to read from an external zipped file. You could uncompress the file to a named pipe and read the sqlloader from the pipe:
$ mknod fifo.dat p
$ uncompress the file and redirect it to the > fifo.dat & #pseudocode
Let SQLLDR read from the Named Pipe:
sqlldr userid=scott/tiger control=load.ctl data=fifo.dat
It isn't guaranteed to be faster, just convenient for you not to uncompress the complete file prior to perform the sqlload operation.
~ Madrid
http://hrivera99.blogspot.com/

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