Oracle gateways连接SqlServer

安装目录：D:\app\Administrator\product\11.2.0\tg_1

注意：1.要与客户端、数据库在同一路径下

注意：2.如果oracle与gateways在同一台电脑上需要更改gateways的端口号1522，oracle已经占用了1521.（必须保证gateways的监听可以起来）

GateWays配置：

initdg4msql.ora文件(D:\app\Administrator\product\11.2.0\tg_1\dg4msql\admin)

HS_FDS_CONNECT_INFO="192.168.43.64;database=ClinicalNursing" （注意版本，sql2008与sql2000不一样，ClinicalNuring为sqlserver中的数据库名称）
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=testa（sqlserver用户名）
HS_FDS_RECOVERY_PWD=qazwsx（sqlserver密码）

listener.ora.sample文件（D:\app\Administrator\product\11.2.0\tg_1\dg4msql\admin）

# This is a sample listener.ora that contains the NET8 parameters that are
# needed to connect to an HS Agent

LISTENER =
 (ADDRESS_LIST=
      (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))
 )

SID_LIST_LISTENER=
  (SID_LIST=
      (SID_DESC=
         (SID_NAME=dg4msql)
         (ORACLE_HOME=D:\app\Administrator\product\11.2.0\tg_1)
         (PROGRAM=dg4msql)
      )
  )

#CONNECT_TIMEOUT_LISTENER = 0 

tnsnames.ora.sample文件(D:\app\Administrator\product\11.2.0\tg_1\dg4msql\admin)

# This is a sample tnsnames.ora that contains the NET8 parameters that are
# needed to connect to an HS Agent

dg4msql  =
  (DESCRIPTION=
    (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))
    (CONNECT_DATA=(SID=dg4msql))
    (HS=OK)
  ) 

GateWays监听配置：

listener.ora文件（D:\app\Administrator\product\11.2.0\tg_1\NETWORK\ADMIN）

# listener.ora Network Configuration File: D:\product\11.2.0\tg_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
 
SID_LIST_LISTENER =
   (SID_LIST =
     (SID_DESC =
     (PROGRAM = dg4msql)
     (SID_NAME = ClinicalNursing)
     (ORACLE_HOME = D:\app\Administrator\product\11.2.0\tg_1)
    )
  )
 
    
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1522))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1522))
    )
  )
 
ADR_BASE_LISTENER = D:\app\Administrator\product\11.2.0\tg_1

tnsnames.ora文件（D:\app\Administrator\product\11.2.0\tg_1\NETWORK\ADMIN）

# This is a sample tnsnames.ora that contains the NET8 parameters that are
# needed to connect to an HS Agent

dg4msql  =
  (DESCRIPTION=
(ADDRESS_LIST =
    (ADDRESS=(PROTOCOL = TCP)(HOST=localhost)(PORT=1522))
)
    (CONNECT_DATA=(SERVICE_NAME=ClinicalNursing))
    (HS=OK)
  ) 

oracle配置

LISTENER.ORA文件（D:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN）

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = orcl)
      (ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1)
      (ENVS = "EXTPROC_DLLS=ONLY:D:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
  )

LISTENER112 =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = LS--20161128SCU)(PORT = 1522))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1522))
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = orcl))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = LS--20161128SCU)(PORT = 1521))
    )
  )

ADR_BASE_LISTENER = D:\app\Administrator\product\11.2.0\dbhome_1\log

SID_LIST_LISTENER112 =
  (SID_LIST =
    (SID_DESC =
      (PROGRAM = dg4msql)
      (SID_NAME = ClinicalNursing)
      (ORACLE_HOME = D:\app\Administrator\product\11.2.0\tg_1)
    )
  )

ADR_BASE_LISTENER112 = D:\app\Administrator\product\11.2.0\tg_1\log

tnsnames.ora文件（D:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN）

# tnsnames.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN\tnsnames.ora
# Generated by Oracle configuration tools.

HIS =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.116)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = orcl)
    )
  )

HMS =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.100)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = orcl)
    )
  )

ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
    (ADDRESS = (PROTOCOL = TCP)(HOST = LS--20161128SCU)(PORT = 1521))
    (CONNECT_DATA =
      (SERVICE_NAME = orcl)
    )
  )

CLINICALNURSING =
  (DESCRIPTION =
    (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.43.243)(PORT=1522))
    (CONNECT_DATA=(SID=ClinicalNursing))
    (HS=OK)
  )
LISTENER_ORCL =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))

理论上完成以上所有配置既可以访问sql server2008了，实际使用当中还要进行如下配置

以上配置完毕后，重新启动下监听服务。再进入Oracle数据库创建DBLink，
create public database link mssqldb connect to "sa" identified by "admin" using 'dg4msql1';
其中“sa”、“admin”分别为访问SqlServer数据库用户名和密码，“dg4msql1”为之前配置的SID名