Connect Oracle 11g (64-bit windows server) to Microsoft SQL Server 2000

Question

Hi all,
I am trying to connect:
Oracle 11g (64-bit windows server) to Microsoft SQL Server 2000 (32-bit) on a different machine.
1) I have create an ODBC connection (called:GALAXY) which connects.
2) created a init.ora called it initgalaxy.ora in $oracle_home\hs\admin
HS_FDS_CONNECT_INFO = GALAXY
HS_FDS_TRACE_LEVEL = on
3) modified the listener.ora file as below
# listener.ora Network Configuration File: E:\Ora11g\product\11.1.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = BIU01)(PORT = 1521))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = extproc0))
SID_LIST_LISTENER=
(SID_LIST=
(SID_DESC =
(GLOBAL_DBNAME = HEX.BIU01.kingsch.nhs.uk)
(ORACLE_HOME = E:\Ora11g\product\11.1.0\db_1)
(SID_NAME = HEX)
(SID_DESC=
(SID_NAME = galaxy)
(ORACLE_HOME = E:\Ora11g\product\11.1.0\db_1)
(PROGRAM = dg4odbc)
(SID_DESC =
(PROGRAM = EXTPROC)
(SID_NAME = PLSExtProc)
(ORACLE_HOME = E:\Ora11g\product\11.1.0\db_1)
4) modified the tnsnames.ora file is as follows
GALAXY =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = BIU01.kingsch.nhs.uk)(PORT = 1521))
(CONNECT_DATA =
(SID = galaxy)
(HS = OK)
HEX =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = BIU01.kingsch.nhs.uk)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = HEX)
5) restarted the listener
6) created a public database connect
create PUBLIC DATABASE LINK "GALAXY" CONNECT TO "USER" IDENTIFIED by "PWD" USING 'galaxy';
This is the error message I can sell in $oracle_home\hs\admin\trace
Oracle Corporation --- MONDAY APR 27 2009 11:54:18.370
Heterogeneous Agent Release
11.1.0.6.0
Oracle Corporation --- MONDAY APR 27 2009 11:54:18.370
Version 11.1.0.6.0
HOSGIP for "HS_FDS_TRACE_LEVEL" returned "ON"
HOSGIP for "HS_OPEN_CURSORS" returned "50"
HOSGIP for "HS_FDS_FETCH_ROWS" returned "100"
HOSGIP for "HS_LONG_PIECE_TRANSFER_SIZE" returned "65536"
HOSGIP for "HS_NLS_NUMERIC_CHARACTER" returned ".,"
HOSGIP for "HS_FDS_RECOVERY_ACCOUNT" returned "RECOVER"
HOSGIP for "HS_FDS_TRANSACTION_LOG" returned ""HS_TRANSACTION_LOG""
HOSGIP for "HS_FDS_TIMESTAMP_AS_DATE" returned "TRUE"
HOSGIP for "HS_FDS_CHARACTER_SEMANTICS" returned "FALSE"
HOSGIP for "HS_FDS_MAP_NCHAR" returned "TRUE"
HOSGIP for "HS_FDS_RESULT_SET_SUPPORT" returned "FALSE"
HOSGIP for "HS_FDS_PROC_IS_FUNC" returned "FALSE"
HOSGIP for "HS_FDS_REPORT_REAL_AS_DOUBLE" returned "FALSE"
using galaxy_live as default value for "HS_FDS_DEFAULT_OWNER"
HOSGIP for "HS_SQL_HANDLE_STMT_REUSE" returned "FALSE"
##>Connect Parameters (len=42)<##
## DSN=GALAXY;
#! UID=galaxy_live;
#! PWD=*
hgocont, line 1890: calling SqlDriverConnect got sqlstate IM002
when I try to test the database link, I get this error:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message:
[Microsoft][ODBC Drive Manager] Data source name not found and no default driver specified
ORA-02063: preceding 2 lines from GALAXY
28500.00000- "connection from ORACLE to ad non-Oracle system returned this message:"
*Cause: The cause is explained in the forwarded message.
*Action: See the non-Oracle system's documentation of the forwarded message.
vendor code 28500
Edited by: user7336435 on 27-Apr-2009 05:56

Answer 1

11.2 is beta at the moment. There is no official release date so far.
As DG4ODBC is independant from the Oracle database (or the target database) you can use a 3 machine model:
On the first machine you have your Oracle database, on a second machine running 32bit Windows you can install DG4ODBC and on the 3rd machine you can run your foreign database.
If the SQL Server 2k is installed on a 32bit Windows machine, then you can also install DG4ODBC on this machine.
In general the connection from an Oracle database to the DG4ODBC machine is done using SDQL*Net. The listener responsible for DG4ODBC will then load the DG4ODBC executable which will connect to the SQL Server using SQL Server ODBC driver.