Export/Import in Oracle8i to Oracle10g

Question

Hi,
We have an Oracle8i Enterprise Edition Release 8.1.6.0.0(32 Bit) running on AIX4.3.3,we are planning to upgrade/migrate it to[b] Oracle10g running on AIX5.3.If i do an export from oracle8i whether i can import it in Oracle 10g without any issues.
Regards,
Cherry

Answer 1

Dear All,
Thanks for your efforts.
I have solved this problem and running the db in windows 2000 server without any problem.
Solution:
A tablespace should be created in the same name, size as in the solaris server. we cant transfer a tablespace created by solaris to windows. Before importing the data we need to create a tablespace and assign to the user (empuser).
here is the method that works for me.
1.GENERAL STEPS TO FOLLOW:
WINDOWS 2000 Server:
Install Oracle 9i release 1 (9.0.1.1.1) in windows 2000 server.
Create a database with following parameters;
1. Select 'General Database'
2. Global Database Name: EMP
3. SID: EMP
4. All default Options and click finish to create and start the oracle instance.
5. Login to SQL-PLUS (username: scott, Password: tiger, Hoststring: <empty>)
6. Connect as sys/change_on_install as sysdba;
7. CREATE TABLESPACE empdeploy DATAFILE 'C:\oracle\oradata\EMP\emp_data_new.dbf' SIZE 1000m AUTOEXTEND ON NEXT 100m MAXSIZE 2048m EXTENT MANAGEMENT LOCAL;
8. CREATE USER empuser IDENTIFIED BY emppass DEFAULT TABLESPACE EMPDEPLOY TEMPORARY TABLESPACE TEMP;
9. GRANT DBA TO EMPUSER (Im not sure whether i given this command or not, dont use this unless u get error during import)
10. disconnect
References:
http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_8003.htm
http://www.adp-gmbh.ch/ora/sql/create_tablespace.html
SUN-SOLARIS 5.6 (SPARC):
It is running Oracle Enterprise edition 8.1.6.
Get the informations below,
INSTANCE NAME
SID
USER HAVING CONTROL TO THAT INSTANCE (like here it was EMPUSER)
TABLESPACES USED
TABLESPACE NAME
DATAFILE NAME and PATH
ORACLE VERSION
2.EXPORT/IMPORT PROCEDURE:
I) Exporting Database from SOLARIS SERVER:
option-1:
exp empuser/emppass
leave all default options
Select Entire database to export (option 1)
YOU SHOULD GET 'Export terminated successfully without warnings'. (Failure causes may be low disk space, ensure that u have enough disk space)
Option-2:
exp empuser/emppass
leave all default options
Enter the user name whose tables to be exported: EMPUSER
Enter the user name whose tables to be exported: <Enter-to-quit>
YOU SHOULD GET 'Export terminated successfully without warnings'.
Option-3:
exp TRIGGERS=y CONSTRAINTS=y GRANTS=y FILE=expdat.dmp
Username: EMPUSER as sysdba
Password: emppass
leave all default options
Select Entire database to export (option 1)
YOU SHOULD GET 'Export terminated successfully without warnings'.
Option-4 (99% wont Work, RISKY):
EXPORT THE TRANSPORTABLE TABLE SPACE (This is different from exporting tables/data, so if all the above fails then export the Transportable table space and import into windows probably it will fail due to platform issue and CHARACTER SET Conversion)
Now import the expdat.dmp file again and see.
Change the required TABLESPACES READ ONLY.
exp TRANSPORT_TABLESPACE=y TABLESPACES=PMTDEPLOY TRIGGERS=y CONSTRAINTS=y GRANTS=y FILE=expdat.dmp
Username: EMPUSER as sysdba
Password: emppass
YOU SHOULD GET 'Export terminated successfully without warnings'.
Now Again Change the TABLESPACES to READ WRITE. (If you forgot this production server cant able to write to the database, the database will be left in read-only mode.)
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II) TRANSFERRING EXPORTED DATA FROM SOLARIS TO WINDOWS 2000 Server.
Now from windows system,
Open command prompt.
connect to SOLARIS SERVER USING FTP.
( cd /user1/home/oracle)change to the Path where you have exported the expdat.dmp file.
set the transfer mode to binary (dont use the default ASCII Transfer Mode)
get expdat.dmp
close
quit
Now the database was successfully exported from solaris and transferred to Windows 2000 server.
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III) Importing the Database in Windows 2000 server:
Open a Command prompt,
imp FULL=y IGNORE=n
Enter User Name : empuser
Password : emppass
You should get the same messages what you got during export, with out any other warnings or big messages running in the screen.
After completion you will get,
'Import terminated successfully without warnings'.
+++++++++Now Login thru SQLPLUS using username: empuser, password: emppass++++++++++
#the following query should return the total number of tables (142 here), this should be same as what you get in solaris. If you get 'no rows selected' then the import was failed, may be take a look at creating tablespaces, or around tablespaces)
select * from tab;
142 rows selected.
A kind request:
if you got your problem solved, please update the forum / usergroup and write how you solved the problem. this might be helpful for others who may face the same trouble. for me also there was some old postings that having similar problem. but they haven't given the solution. after their problem solved just left this forums.
Thanks & Regards,
Sakthivel