SQL Server with Oracle

Question

Hello All,
I am trying to invoke the SQL Server database from Oracle for which I have done the following:
1) Created DSN for SQL Server database
2) Created the init<DSN Name>.ora file under <oracle home>\database as follows:
HS_FDS_CONNECT_INFO = sharepoint
HS_FDS_TRACE_LEVEL = OFF
3) Created a listener entry as follows:
sharepoint =
+(ADDRESS_LIST=+
+(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1522))+
+(ADDRESS=(PROTOCOL=ipc)(KEY=PNPKEY)))+
SID_LIST_sharepoint=
+(SID_LIST=+
+(SID_DESC=+
+(SID_NAME=sharepoint)+
+(ORACLE_HOME = <path>)+
+(PROGRAM=hsodbc)+
+)+
+)+
4) Added a new TNS entry in tnsnames.ora file as follows:
sharepoint =
+(DESCRIPTION=+
+(ADDRESS=+
+(PROTOCOL=tcp)(HOST=localhost)(PORT=1522))+
+(CONNECT_DATA=(SID=sharepoint)))(HS=OK)+
I have created a DBLink in Oracle database using the new tns name.
When I try to access a table using DBLink in Sql plus / Toad I am getting the following error:
ORA-02068: Following severe error from sharepoint
ORA-03135: connection lost contact.
I have confirmed whether the listener is up and also I got OK result using tnsping.
My windows firewall is off (as of now) and also I have no entry to timeout in SQLNET.ORA file.
Am I missing something here.
Please help me out.
Regards,
Anoop

Answer 1

I can only comment on the SQLSever gateways I had to install recently, maybe some of these notes will jog your memory.
Assuming you have installed the gateway on the SQLServer server with just the defaults.
I notice your pfile is called init{DSN}.ora. I named mine initdg4msql{SQLSvrDBname}.ora
The FDS info line was: HS_FDS_CONNECT_INFO={servername}//{SQLSvrDBName}
( This assumes the default SQLServer TCP port is being used, else syntax is different. )
The gateway listener.ora config for mine was:
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1800))
(ADDRESS = (PROTOCOL = TCP)(HOST = serverhostname )(PORT = 1800))
SID_LIST_LISTENER=
(SID_LIST=
(SID_DESC=
(SID_NAME=dg4msql{SQLSvrDBName})
(ORACLE_HOME=D:\oracle\product\11.1.0\tg_1)
(PROGRAM=dg4msql)
Rgds