DBLINK FROM ORACLE9I ON WINDOWS TO CONNECT SQL SERVER 2005 ON WINDOWS 2003

Question

Hello All,
please i will need help in connecting oracle9i via dblink to sqlserver 2005.
i have done some configurations already
* started the listener = which starts alright
* the tnsping was also successful
but i keep getting ORA-12154:TNS:could not resolve service name
this is my tnsnames
# TNSNAMES.ORA Network Configuration File: D:\oracle\ora92\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
SIMREG.CORP.MULTI-TELKOM.COM =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.11.185)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = simreg)
INST1_HTTP.CORP.MULTI-TELKOM.COM =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.11.185)(PORT = 1521))
(CONNECT_DATA =
(SERVER = SHARED)
(SERVICE_NAME = MODOSE)
(PRESENTATION = http://HRService)
EXTPROC_CONNECTION_DATA.CORP.MULTI-TELKOM.COM =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
Mtl_simcard =
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1522))
(CONNECT_DATA=(SID=Mtl_simcard))
(HS=OK)
and my listener
# LISTENER.ORA Network Configuration File: D:\oracle\ora92\network\admin\listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = vic00246dt)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:\oracle\ora92)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = simreg)
(ORACLE_HOME = D:\oracle\ora92)
(SID_NAME = simreg)
LISTENERMtl_simcard =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = vic00246dt)(PORT = 1522))
SID_LIST_LISTENERMtl_simcard =
(SID_LIST =
(SID_DESC =
(SID_NAME = Mtl_simcard)
(ORACLE_HOME = D:\oracle\ora92)
(PROGRAM = hsodbc)
(SID_DESC =
(GLOBAL_DBNAME = simreg)
(ORACLE_HOME = D:\oracle\ora92)
(SID_NAME = simreg)
i also have the following in my D:\oracle\ora92\hs\admin
*inithsodbc
# 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 = Mtl_simcard
HS_FDS_TRACE_LEVEL = OFF
# Environment variables required for the non-Oracle system
#set <envvar>=<value>
also initMtl_simcard
# 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 = Mtl_simcard
HS_FDS_TRACE_LEVEL = OFF
# Environment variables required for the non-Oracle system
#set <envvar>=<value>
please is there any thing have done wrong please some should point out to me.....thanks, i will be looking forward to suggestions and recommendations

Answer 1

12154 means the alias you have defined for HSODBC specified in the database links using cluase can't be found in the tnsnames.ora. Most of your entries have the domain suffix .CORP.MULTI-TELKOM.COM - only the hsodbc alias misses this information.
Unfortunately you didn't post the SQLNET.ORA file which commonly contains the default domain parameter, so I can only suggest to change the alias to:
Mtl_simcard, Mtl_simcard .CORP.MULTI-TELKOM.COM = # note the comma between both aliases which allows you to use an alias with and without the domain
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=vic00246dt)(PORT=1522))
(CONNECT_DATA=(SID=Mtl_simcard))
(HS=OK)
You also didn't post the create database link statement but it should look like:
create database link <you link name> connect to "<case sensitive SQl Server UID>" identified by "<case sensitive PWD>" using 'Mtl_simcard';
=> the using cluase must refer to your tnsnames.ora hsodbc alias.
When it continues to fail, please post the tnsping command the the create database link statement.