NLS settings for a database link between DBs with different character sets

I am using a database link to move data from one database to another and I am seeing some strange data problems. The databases have different character sets and different NLS settings. I wonder if this could be causing my problem.
Here are the NLS parameters for the database where the database link exists. (the SOURCE database)
1     NLS_CALENDAR     GREGORIAN
2     NLS_CHARACTERSET     WE8MSWIN1252
3     NLS_COMP     BINARY
4     NLS_CURRENCY     $
5     NLS_DATE_FORMAT     DD-MON-RR
6     NLS_DATE_LANGUAGE     AMERICAN
7     NLS_DUAL_CURRENCY     $
8     NLS_ISO_CURRENCY     AMERICA
9     NLS_LANGUAGE     AMERICAN
10     NLS_LENGTH_SEMANTICS     BYTE
11     NLS_NCHAR_CHARACTERSET     AL16UTF16
12     NLS_NCHAR_CONV_EXCP     FALSE
13     NLS_NUMERIC_CHARACTERS     .,
14     NLS_SORT     BINARY
15     NLS_TERRITORY     AMERICA
16     NLS_TIMESTAMP_FORMAT     DD-MON-RR HH.MI.SSXFF AM
17     NLS_TIMESTAMP_TZ_FORMAT     DD-MON-RR HH.MI.SSXFF AM TZR
18     NLS_TIME_FORMAT     HH.MI.SSXFF AM
19     NLS_TIME_TZ_FORMAT     HH.MI.SSXFF AM TZR
Here are the NLS parameters for the database that the database link connects to. (the TARGET database)
1     NLS_CALENDAR     GREGORIAN
2     NLS_CHARACTERSET     AL32UTF8
3     NLS_COMP     BINARY
4     NLS_CURRENCY     $
5     NLS_DATE_FORMAT     DD-MON-RR
6     NLS_DATE_LANGUAGE     AMERICAN
7     NLS_DUAL_CURRENCY     $
8     NLS_ISO_CURRENCY     AMERICA
9     NLS_LANGUAGE     AMERICAN
10     NLS_LENGTH_SEMANTICS     BYTE
11     NLS_NCHAR_CHARACTERSET     AL16UTF16
12     NLS_NCHAR_CONV_EXCP     FALSE
13     NLS_NUMERIC_CHARACTERS     .,
14     NLS_SORT     BINARY
15     NLS_TERRITORY     AMERICA
16     NLS_TIMESTAMP_FORMAT     DD-MON-RR HH.MI.SSXFF AM
17     NLS_TIMESTAMP_TZ_FORMAT     DD-MON-RR HH.MI.SSXFF AM TZR
18     NLS_TIME_FORMAT     HH.MI.SSXFF AM
19     NLS_TIME_TZ_FORMAT     HH.MI.SSXFF AM TZR
The SOURCE database version is 10g Release 10.2.0.3.0 - Production
The TARGET database version is 11g Release 11.1.0.6.0 - 64bit Production
Do I need to modify the NLS settings in the SOURCE database before executing a script to insert data into the TARGET database?
Thanks, Jack

The difference in settings is not a problem by itself, especially that only the NLS_CHARACTERSET matters. Of course, this difference may lead to certain issues if not taken into consideration.
Please, describe symptoms of your problems.
-- Sergiusz

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Hi everyone:
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Hello Everyone,
Here i have Oracle Database 9i and SQL Server 2005 databases.
I have some tables in sql server db and i want to access from Oracle.
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Thanks,

Thanks for Everyone,
I was struggle with this almost 10 days....
I created Database link from Oracle to SQL Server
Now it is fine.........
Here i am giving my servers configuration and proceedure how i created the db link...@
Using Generic Connectivity (HSODBC) we can create db link between Oracle and SQL server.
Machine (1)
DB Version : Oracle 9.2.0.7.0
Operating System : HP-UX Itanuim 64 11.23
IP : 192.168.0.31
Host : abcdbt
Machine (2)
Version : SQL Server 2005
Operating System : Windows server 2003 x86
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User/PW : sa/abc@123! (Connect to database)
Database : SQLTEST (exsisting)
Table : T (“ T “ is the table existing in SQLTEST database with 10 rows)
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c)     Existing SQL Server Database (SQLTEST)
d) Tables (testing purpose) (T)
Steps:
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Control panel >> Administrative Tools >> Data Source (ODBC) >> System DSN ADD
You can follow this link also.....
http://www.databasejournal.com/features/oracle/article.php/3442661/Making-a-Connection-from-Oracle-to-SQL-Server.htm
I created DSN as
DSN name : SQLTEST
User : SA/abc@123! (Existing user account)
Host : 192.168.0.175 (machine 2)
Already I have 1 database in SQL Server with the name SQLTEST
You can create DSN with different name also (not same as db name also)
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Copy inithsodbc to initSQLTEST
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initSQLTEST file
HS_FDS_CONNECT_INFO = SQLTEST    <DSN NAME>*
HS_FDS_TRACE_LEVEL = OFF*
save the file....@
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(DESCRIPTION_LIST =
(DESCRIPTION =
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SID_LIST_LISTENER_NEW =
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(PROGRAM = hsodbc))
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = G:\oracle 10g\oracle\product\10.2.0\db_1)
(PROGRAM = extproc) )
:> lsnrctl start LISTENER_NEW
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SQLTEST11 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.175)(PORT = 1525))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = SQLTEST))
(HS=OK)
:> tnsping SQLTEST11
If No errors then conti….
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Cd $TNS_ADMIN ($ORACLE_HOME/network/admin)
Create a file
$ vi TEST_abcdbt_ifile.ora
something=
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST =192.168.0.175) (PORT=1525))
(CONNECT_DATA=
(SID=SQLTEST))
(HS=OK)
$ tnsping something
$ sqlplus system/manager
Your connected to Oracle database *(machine 1)*
create database link xyz connect to “sa” identified by “abc@123!” using ‘SOMETHING’;
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Thanks,
Edited by: ram5424 on Feb 10, 2010 7:24 PM

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Hi,
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Here is my command :
declare
GET VARCHAR2(50);
begin
select OIA_GET_DESIGNATION into GET from INFODRI.OMA_IN_ARTICLES;
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exception
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Thanks &
Best Regards,

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Cheers !!!!
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Hi,
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(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = server2)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
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(ADDRESS = (PROTOCOL = TCP)(HOST = server1)(PORT = 1521))
(CONNECT_DATA =
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Hi,
I'm having a 3.2 -> 4.1 upgrade issue related to error handling for failed database links.
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ORA-12518: TNS:listener could not hand off client connection
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is_internal_error: true
apex_error_code: APEX.CONDITION.UNHANDLED_ERROR
ora_sqlcode: -12518
ora_sqlerrm: ORA-12518: TNS:listener could not hand off client connection
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component.id: 4
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Thanks Patrick.
The PL/SQL Function Body returning boolean condition with:
begin
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       FROM myview@MYDBLINK
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exception when others then
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Error Error processing condition.
ORA-04052: error occurred when looking up remote object MYLINKUSER.myview@MYDBLINK
ORA-00604: error occurred at recursive SQL level 3
ORA-01033: ORACLE initialization or shutdown in progress
ORA-02063: preceding line from MYDBLINK
Technical Info (only visible for developers)
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apex_error_code: APEX.CONDITION.UNHANDLED_ERROR
ora_sqlcode: -4052
ora_sqlerrm: ORA-04052: error occurred when looking up remote object MYLINKUSER.myview@MYDBLINK
ORA-00604: error occurred at recursive SQL level 3
ORA-01033: ORACLE initialization or shutdown in progress
ORA-02063: preceding line from MYDBLINK
component.type: APEX_APPLICATION_PAGE_REGIONS
component.id: 4
component.name: Current Alerts
error_backtrace:
ORA-06512: at "SYS.WWV_DBMS_SQL", line 904
ORA-06512: at "APEX_040100.WWV_FLOW_DYNAMIC_EXEC", line 588
ORA-06512: at "APEX_040100.WWV_FLOW_CONDITIONS", line 148However, I created a view with the same query:
CREATE OR REPLACE VIEW v_localview (ALERT_1)
AS
SELECT 1
FROM myview@MYDBLINK ...then change the condition to look at the local view:
begin
    for l_check in (
      select alert_1 from v_localview ) loop
        return true;
    end loop;
    return false;
exception when others then
    sys.htp.p('Invalid exists/not exists condition: ' || sys.htf.escape_sc(sqlerrm));
    return false;
end;As a view is simply a query I'm surprised this should make any difference but it now looks similar to the 3.2 error, inside the region, when the linked database gets its morning cold backup, and this is fine:
Invalid exists/not exists condition: ORA-12518: TNS:listener could not hand off client connection

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dear all,
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for some weird reason, I can't post the reply I want. every time I try, the forum hangs and doesn't save the message. give me a sec...
I have put the password within double quotes... so I'm starting to think the problem is something else. I've been reading other posts regarding creating database links and I've obtained limited results. Here's what I've done, and the results I'm getting.
(names changed to protect the innocent)
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sel{color:black}{color}ect * fr{color:black}{color}om my{color:black}{color}_{color:black}{color}ta{color:black}{color}ble{color:black}{color}@{color:black}{color}BLAH
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ERROR at line 1:
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SQL> sel{color:black}{color}ect {color:black}{color}* fro{color:black}{color}m my{color:black}{color}_{color:black}{color}tab{color:black}{color}le{color:black}{color}@BLAH;
sel{color:black}{color}ect {color:black}{color}* fr{color:black}{color}om {color:black}{color}my_{color:black}{color}tab{color:black}{color}le@B{color:black}{color}LAH
ERROR at line 1:
ORA-02085: database link BLAH.AAA.BB.CCC.DDD connects to
DEVDB.AAA.BB.CCC.DDD
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Darren

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DB versions 10.2 and 10.1
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Thanks

Hi DBA-One
This link
http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14215/dp_overview.htm#CEGFCFFI
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I quote:
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Hi,
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Tuning replication performance in DFSR (especially on Win2008 R2)
http://blogs.technet.com/b/askds/archive/2010/03/31/tuning-replication-performance-in-dfsr-especially-on-win2008-r2.aspx
Best Regards,
Mandy
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Can't Create Database with SJISYEN character set

I am trying to create a new database in Oracle 10g using the SJISYEN character set. The summary page display in the Database Configuration wizard shows the following
Character Sets
Database Character Set JA16SJISYEN
National Character Set AL16UTF16
The database gets created successfully with no errors, but when I query the V$NLS_PARAMETERS view, the NLS_CHARACTERSET is reported as US7ASCII
Should I be able to create a database with the SJISYEN character set with Oracle 10g?

Can you please run the following SQL statement and see what you get:
SQL>
1 select * from nls_database_parameters
2* where parameter like '%CHARACTERSET'

NLS settings for a database link between DBs with different character sets

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