Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

How do you restore an Oracle DB from a .dmp file?

Posted on 2011-02-11
12
932 Views
Last Modified: 2012-05-11
I have a DMP file from an Oracle database. It is version 10g1.

I've just installed Oracle 10g2 Express Edition (I couldnt find 10g1 on the Oracle website).

Can I restore this 10g1 DMP file to 10g2 Express Edition?

How do I restore the database?


Thanks,
ob1

0
Comment
Question by:ob1_
  • 7
  • 2
  • 2
  • +1
12 Comments
 
LVL 14

Accepted Solution

by:
leoahmad earned 125 total points
ID: 34872201
yes,
you may use oracle import utility for that
or may be some external utility like toad.

SQL> host imp
0
 
LVL 6

Author Comment

by:ob1_
ID: 34872246
ok thanks - i am getting prompted for usrname/pw. should i use the system account i specified the pw for during Oracle setup? what is the username for this? if not how do i create a user?
0
 
LVL 6

Author Comment

by:ob1_
ID: 34872299
nevermind i was typing the wrong password.

i accepted all the defaults and it says "FromUser 'System' not found in export file. Import terminated successfully with warnings".

is that  normal?
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 1

Assisted Solution

by:hraja77
hraja77 earned 250 total points
ID: 34872329
what user exported the dmp file - thats the user you want to import i guess - so you should that user in fromuser='$$$$';
paste your string here so i can have alook
0
 
LVL 6

Author Comment

by:ob1_
ID: 34872352
i am not sure - it was exported from another system i don't have access to. as long as i can get to the data i don't care if the usernames are the same.

is there a way for me to see the database in Oracle now that i have imported it?
0
 
LVL 1

Assisted Solution

by:hraja77
hraja77 earned 250 total points
ID: 34872370
if you want to import into schema name 'TOM' from schema named 'JACK'
then you woud need to say fromuser='JACK'
                                            to_user='TOM'

if you put in a dodgy user say fromuser='JAK' it will come back sucessfull as that user was not in the dmp file
0
 
LVL 76

Assisted Solution

by:slightwv (䄆 Netminder)
slightwv (䄆 Netminder) earned 125 total points
ID: 34872450
You will likely need to precreate the tablespaces.

To get a look at what is in the dmp file:
imp system/password file=filenaem.dmp show=y
0
 
LVL 6

Author Comment

by:ob1_
ID: 34872560
if i run "imp system/password file=filenaem.dmp show=y" i get "unknow command beginning 'imp system...' - rest of line ignored
0
 
LVL 6

Author Comment

by:ob1_
ID: 34873305
it says "Warning: the objects were exported by SAMPLE, not by you"

i am trying to create a user for SAMPLE in Oracle so I can specify touser=SAMPLE but when I try to run this command all I get back is a new line that says "2".

 
create user SAMPLE identified by password
0
 
LVL 6

Author Comment

by:ob1_
ID: 34873325
ok now i have entered "create user SAMPLE identified by password;" with the semicolon and it comes back with "SP2 - 0640" - any help??
0
 
LVL 76

Expert Comment

by:slightwv (䄆 Netminder)
ID: 34873631
Are you now able to run the imp command?
Try this:

imp system/password file=filename fromuser=sample touser=sample
0
 
LVL 6

Author Closing Comment

by:ob1_
ID: 34873702
used partial answers to resolve question
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Creating and Managing Databases with phpMyAdmin in cPanel.
These days, all we hear about hacktivists took down so and so websites and retrieved thousands of user’s data. One of the techniques to get unauthorized access to database is by performing SQL injection. This article is quite lengthy which gives bas…
This video shows setup options and the basic steps and syntax for duplicating (cloning) a database from one instance to another. Examples are given for duplicating to the same machine and to different machines
Via a live example, show how to restore a database from backup after a simulated disk failure using RMAN.

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question