Can we access Oracle 10g R2 database from Oracle 11g Client

Hi,
Can any1 tell me can we access Oracle 10g R2 database from Oracle 11g Client ? I m unable to find a Oracle Client 10g R2 for Windows 7 32 bit.
Below link is for Vista only
http://www.oracle.com/technetwork/database/10203vista-087538.html

832812 wrote:
Hi,
Can any1 tell me can we access Oracle 10g R2 database from Oracle 11g Client ? I m unable to find a Oracle Client 10g R2 for Windows 7 32 bit.
Below link is for Vista only
http://www.oracle.com/technetwork/database/10203vista-087538.html
Check this note for client/server compatibility
Client / Server / Interoperability Support Between Different Oracle Versions [ID 207303.1]

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I have tryed to connect to a DB2 database from oracle 10 G on linux.
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ERROR at line 1:
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Database_
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-bash-3.2$ sqlplus "/as sysdba"
SQL*Plus: Release 10.2.0.1.0 - Production on Mié Jul 7 10:04:43 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Conectado a:
Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production
Platform_
Linux srvpdf 2.6.18-164.el5xen #1 SMP Thu Sep 3 04:47:32 EDT 2009 i686 i686 i386 GNU/Linux
*/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/hs/admin/initDB2DATABASE.init*
#This is a sample agent init file that contains the HS parameters that are
# needed for an ODBC Agent.
# HS init parameters
#HS_FDS_CONNECT_INFO = ODBC_DSN
HS_FDS_CONNECT_INFO = prueba
HS_FDS_TRACE_FILE_NAME = /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/hs/admin/DB2DATABASE.log
HS_FDS_CONNECT_INFO = DB2DATABASE
#HS_FDS_TRACE_LEVEL = debug
HS_FDS_TRACE_LEVEL = 0
HS_FDS_SHAREABLE_NAME = /opt/ibm/iSeriesAccess/lib/libcwbodbc.so
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set ODBCINI=/etc/odbc.ini
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listener.ora_
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SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /usr/lib/oracle/xe/app/oracle/product/10.2.0/server)
(PROGRAM = extproc)
(SID_DESC =
(SID_NAME = DB2DATABASE)
(ORACLE_HOME = /usr/lib/oracle/xe/app/oracle/product/10.2.0/server)
(PROGRAM =hsodbc)
(ENVS = LD_LIBRARY_PATH = /opt/ibm/iSeriesAccess/lib:/usr/lib/oracle/xe/app/oracle/product/10.2.0/server)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
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(ADDRESS = (PROTOCOL = TCP)(HOST = 172.18.3.32)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.18.3.31)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
DEFAULT_SERVICE_LISTENER = (XE)
tnsnames.ora_
(DESCRIPTION =
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(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
DB2DATABASE =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST =localhost )(PORT=1521))
(CONNECT_DATA =
(SERVICE_NAME = DB2DATABASE)
(HS=OK)
odbc.ini_
[prueba]
Description = iSeries Access ODBC Driver
Driver = iSeries Access ODBC Driver
System = xxx.xx.3.2
UserID = xxxxxx
Password = xxxxxx
Naming = 0
DefaultLibraries = QGPL
Database = CHERRYWEB
ConnectionType = 0
CommitMode = 2
ExtendedDynamic = 0
DefaultPkgLibrary = QGPL
DefaultPackage = A/DEFAULT(IBM),2,0,1,0,512
AllowDataCompression = 0
MaxFieldLength = 32
BlockFetch = 1
BlockSizeKB = 128
ExtendedColInfo = 0
LibraryView = 0
AllowUnsupportedChar = 0
ForceTranslation = 0
Trace = 0
odbcinst.ini_
[PostgreSQL]
Description = ODBC for PostgreSQL
Driver = /usr/lib/libodbcpsql.so
Setup = /usr/lib/libodbcpsqlS.so
FileUsage = 1
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Description = iSeries Access for Linux ODBC Driver
Driver = /opt/ibm/iSeriesAccess/lib/libcwbodbc.so
Driver64 = /opt/ibm/iSeriesAccess/lib64/libcwbodbc.so
Setup = /opt/ibm/iSeriesAccess/lib/libcwbodbcs.so
Setup64 = /opt/ibm/iSeriesAccess/lib64/libcwbodbcs.so
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CPReuse =
System = 172.18.3.2
User = inf5mito
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ODBC Driver_
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total 2260
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-r-xr-xr-x 1 root root 94504 Apr 5 2008 libcwbrc.so
-r-xr-xr-x 1 root root 16636 Apr 5 2008 libcwbodbcs.so
-r-xr-xr-x 1 root root 729572 Apr 5 2008 libcwbodbc.so
-r-xr-xr-x 1 root root 998060 Apr 5 2008 libcwbcore.so
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SQL> /
select from display@db2database*
ERROR en línea 1:
ORA-28500: la conexión de ORACLE a un sistema no Oracle ha devuelto este
mensaje:
*[Generic Connectivity Using ODBC][C077] Could not find symbol 'SQLAllocConnect'*
in dynamic library
*[C079] Failed to load dynamic library*
*'/opt/ibm/iSeriesAccess/lib/libcwbodbc.so'*
ORA-02063: 3 lines precediendo a DB2DATABASE
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