Import of Oracle and the export utility

Hi all

Could someone please explain me Oracle Import and Export Utility. I went through the link below and it was mentioned to use the keyword "exp" but I don't get any idea where to use. To explain the functioning of the util.

Hello;

Export creates a logical backup its great to move the tables, diagrams, etc.

Import bring data back in.

You can use a parm file with either.

Example of import:

IMP parfile = in .parm

in.parm ( contains )

userid=system/
fromuser=scott
touser=scott
file=in.dmp
log=in.log

parfile = out .parm of EMP

out.parm ( contains )

userid=system/
owner=scott
file=out.dmp
log=out.dmp
statistics=none

You can use these commands at the operating system level to get quick help.

imp help=y

enp help=y

You can export a subset of a table:

exp scott/t tables=emp query="where deptno=20"

You can use options like:

full=y
BUFFER=2000000
GRANTS=y
COMPRESS=y

This utility is replaced by the data pump.

Best regards

mseberg

There is a short import and export examples here:

http://www.Oracle-DBA-online.com/export_and_import.htm

Published by: mseberg on Sep 17, 2011 18:46

Tags: Database

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