Can one export to multiple files? Can one beat UNIX 2 Gig limit

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

Look at this example
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

# read the pipe – output to zip file in the background
gzip < exp.pipe > scott.exp.gz &

# feed the pipe
exp userid=scott/tiger file=exp.pipe... 

How to fix: ERROR 1045 (28000): Access denied for user ‘root’@’localhost’ (using password: YES)

Open your terminal and type mysql -u root -p Enter your password. Hopefully your MySQL is logged in now.