Tables do not import when importing from 10gR2 to 9iR2

Question

Hello forum members
I take full database dump from 10g database as below:
C:\Documents and Settings\Vugar>exp
Export: Release 9.2.0.1.0 - Production on Thu Aug 6 19:05:47 2009
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Username: sys/sys_pass@prod as sysdba
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Produc
tion
With the Partitioning, OLAP and Data Mining options
Enter array fetch buffer size: 4096 >
Export file: EXPDAT.DMP > c:\full6.dmp
(1)E(ntire database), (2)U(sers), or (3)T(ables): (2)U > E
Export grants (yes/no): yes >
Export table data (yes/no): yes >
Compress extents (yes/no): yes >
And import the dump file in 9i database as below:
C:\Documents and Settings\Vugar>imp
Import: Release 9.2.0.1.0 - Production on Thu Aug 6 19:08:18 2009
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Username: sys/sys_pass as sysdba
Connected to: Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
Import file: EXPDAT.DMP > c:\full6.dmp
Enter insert buffer size (minimum is 8192) 30720>
Export file created by EXPORT:V09.02.00 via conventional path
import done in WE8MSWIN1252 character set and AL16UTF16 NCHAR character set
import server uses AL32UTF8 character set (possible charset conversion)
List contents of import file only (yes/no): no >
Ignore create error due to object existence (yes/no): no >
Import grants (yes/no): yes >
Import table data (yes/no): yes >
Import entire export file (yes/no): no > Y
Everything goes alright, all of the users and their grants created in the target database. But the tables and other objects of users do not create. After the full import I import every user with the from user to user clause. After that all of the objects create under each user. Can anyone tell me the reason of that, why the objects of users do not create when perfomin full import?? What is my mistake in full importing?
Thanks.

Answer 1

Shafi Rasulov wrote:
Thanks for reply
Virendra, I exported from 10g with 9i exp utility, so 9i exp utility doesn't export incompatible objects from 10g, so it is possible full export import from 10g to 9i.
Anand, as you say, I exported/imported with 9i utility from 10g. In tha documentation and another tutorials I haven't seen any notification about missing table and another objects in the export/import.
Pavan, as you say there is several ways for migrating from 10g to 9i but I'm interested in why full export/import doesn't create tables and another objects when I do.
I say again, after I full import, I import each user with the FROM USER TO USER statement and all of the objects are created under relevant user. I want to learn the reason why the tables and another objects are not created in full import??I don't have 9i database with me to check what is happening but there should not be any error if you have used proper binary of the right version to do the export. What are those "incompatible objects" that you are talking about which are not exported/imported? You don't need to use from user/to user, if you are going to mention a 10g schema and Full=y , your import would work properly.
HTH
Aman....