Cannot connect to MS-SQL Server

Question

I cannot connect to MS-SQL Server.
My listener.ora:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = D:\oracle\ora92)
(SID_NAME = orcl)
(SID_DESC =
(PROGRAM = extproc)
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:\oracle\ora92)
(SID_DESC =
(PROGRAM = tg4msql)
(SID_NAME = TG_SQL_SERVER_S0168SS0068)
(ORACLE_HOME = D:\oracle\ora92)
My tnsnames.ora:
TG_SQL_SERVER_S0168SS0068 =
(DESCRIPTION =
(ADDRESS =
(PROTOCOL=TCP)
(HOST=localhost)
(PORT=1521)
(CONNECT_DATA=
(SID=TG_SQL_SERVER_S0168SS0068))
(HS=OK))
My inittg4msql.ora:
HS_FDS_CONNECT_INFO=S0198SS0068.db1
HS_FDS_TRACE_LEVEL=ON
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
And I have created a database link:
CREATE PUBLIC DATABASE LINK tg_sql_server_s0198ss0068 CONNECT TO myusername IDENTIFIED BY mypassword USING 'tg_sql_server_s0198ss0068';
And I get a "ORA-12154: TNS:could not resolve service name" error.
Any idea??

Answer 1

Karl,
Perhaps the TNSNAMES.ORA entry (on your database server) needs a domain suffix (eg TG_SQL_SERVER_S0168SS0068.mycompany.com = )
This Generic Connectivity 4 MS ACCESS on host  A  and ORACLE 9I on host B.. explains some of the topography.
Tak