The system don't goes up after Upgrade to 10g

Question

Hello friends. After a Oracle upgrade of 9i to 10g (Windows 2003 / Basis Release 46D). The system SAP R/3 4.6C  don't goes up. A follow message is the error in file "dev_w0":
Now I'm connected to ORACLE
C  Database instance prd is running on SAPUPG with ORACLE version 10.2.0.2.0 since 20070612
B  Connection 0 opened
B  Wp  Hdl ConName              ConCnt ConState     TX  PRM RCT Date     Time
B  000 000 R/3                  000000 ACTIVE       NO  YES NO  20070613 100955
B  ***LOG BZA=> table SVERS      doesn't exist on database [dblink  2056 ]
To understand the problem I run the follow command into "sqlplus":
SQL> select * from svers;
select * from svers
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> select * from sapr3.svers;
VERSION                                                                        
46C                                                                               
Please take special attention to this point: When the execution it's was made indicating a DBSCHEMA plus table (sapr3.svers) the command it's succesfull, otherwise fail's. If I logon with user: "SYSTEM" it's the same result.
Thank's to everyone for help me and understand my very bad english.
Best regards.
Xavier Pol

Answer 1

Hi,
It looks like you have some "wrong" concepts.
First you say that:
<b>Now in WS1, there is no schema</b>
later on you are telling
<b>have then check the command
select * from SAPBOS.SVERS and it worked.</b>
So, do you have a schema or don't you?
Let me try to understand what you have done, for your description
1) you have a system called BOS. On this system you have a schema called SAPBOS.
2) you did a system copy from BOS to W1S. Guessing -> You did a restore from a BOS
Now your SAPW1S has "dissapeared"
am I understandin it properly?
If so, you should think a little.
You have restored a backup from BOS ( DB name BOS, SCHEMA BOS, tablespace names PSAPBOS ) into W1S
Restoring a backup will not change the schema name ( AFAIK, there is no simple way of doing so )
Restoring a backup will not change the tablespaces names ( in Oracle 10g you can do this, but has to be done manually )
Restoring the backup will not change the DB name. The System copy procedure ask you to create a script that will perform this last change.
So, at the end of the process you have a DB called W1S, with a schema called SAPBOS and tablespaces called PSAPBOS.
As mentioned before there is no simple way of changing the schema name.
If you <b>need/want/desire</b> to do so then you cannot use BACKUP/RESTORE for system copies. You must use the R3Load method ( take all data out of the DB and then take all the data in on the new system )