A short memo about Oracle TG installation with sample configuration.

DirectoryPaths, hostnames, sid and account names are not real and as such do not reflect real production environment!

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MS SQL Server: MSSQLHOST
MS SQL Database: MSSQLPROD
Oracle Transparent Gateway for 10g was installed on MSSQLHOST in
home E:\ORACLE\ORA10TG and patched to 10.2.0.4.
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Listener.ora configuration on MSSQLHOST:
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SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = ORATG)
      (ORACLE_HOME = E:\ORACLE\ORA10TG)
      (PROGRAM = tg4msql)
    )
  )
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = MSSQLHOST)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
    )
  )
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C:\ORACLE\ORA10TG\tg4msql\admin\initORATG.ora
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# This is a sample agent init file that contains the HS parameters that are
# needed for the Transparent Gateway for SQL Server
#
#
# HS init parameters
#
HS_FDS_CONNECT_INFO=MSSQLHOST.MSSQLPROD       <- MS SQL Database
#HS_FDS_TRACE_LEVEL=DEBUG
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=MSSQLPROD_RECOVERY     <- OracleTG Recovery account
HS_FDS_RECOVERY_PWD=pwdpwd
HS_FDS_TRANSACTION_LOG=PROD_TRANSACTION_LOG
HS_FDS_TRANSACTION_MODEL=COMMIT_CONFIRM
# HS_FDS_TRANSACTION_MODEL=READ_ONLY
# HS_FDS_TRANSACTION_MODEL=TWO_PHASE_COMMIT
# HS_FDS_TRANSACTION_MODEL=SINGLE_SITE
HS_COMMIT_POINT_STRENGTH=0
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TNSNAMES.ORA entry at Oracle side:
##################################
MSSQLPROD = 
  (DESCRIPTION = 
    (ADDRESS_LIST = 
       (ADDRESS = 
         (PROTOCOL = TCP)
         (HOST = mssqlhost)
         (PORT = 1521)
       )
    )
    (CONNECT_DATA =
       (SID = oratg)
    )
   (HS = OK)
  )
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