From
Oracle8i, export utility supports multiple output files. This feature enables
large exports to be divided into files whose sizes will not exceed any
operating system limits (FILESIZE= parameter). When importing from multi – file
export you must provide the same filenames in the same sequence in the FILE =
parameter
exp SCOTT/TIGER FILE=D:\F1.dmp,E:\F2.dmp FILESIZE=10m LOG=scott.log
Use the following technique if you use an Oracle version prior to 8i
Create a compressed export on the fly. Depending on the type of data, you
probably can export up to 10 gigabytes to a single file. This example uses
gzip. It offers the best compression I know of, but you can also substitute it
with zip, compress or whatever.
# creates a named pipe
mknod exp.pipe p
mknod exp.pipe p
# read the pipe – output to zip file in the background
gzip < exp.pipe > scott.exp.gz &
gzip < exp.pipe > scott.exp.gz &
# feed the pipe
exp userid=scott/tiger file=exp.pipe...
exp userid=scott/tiger file=exp.pipe...