Question

我已经创建了一个DB链接到Oracle数据库，指向SQL Server数据库。如果为此SQL Server数据库正确配置了ODBC。我还在Oracle数据库服务器上安装了适用于SQL Server的Oracle网关。

当我尝试在我的Oracle数据库上执行此SQL请求时：

SELECT * FROM obbud@qualiactst

(qualiactst is my DBLink :
-- PROMPT CREATE DATABASE LINK qualiactst
CREATE DATABASE LINK qualiactst
  CONNECT TO iac IDENTIFIED BY ***** USING 'RIATST';

)

错误信息显示如下：

ORA-12154: TNS : could not resolve the connect identifier specified

我已经使用以下命令配置了Oracle数据库服务器的tnsname.ora文件：

RIATST =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = grensql2k12R2-1)(PORT = 14539))
    )
    (CONNECT_DATA = (SID = RIATST))
    (HS=OK)
  )

（但我真的不知道是否必须将非oracle数据库添加到tnsname.ora中）

我不明白我做错了什么，如果有些事情遗失了。

你能帮帮我吗？非常感谢你

珍

Answer 1

看起来您没有将侦听器设置到目标主机（grensql2k12R2-1）或不配置HS初始化文件。

通常，请尝试关注this guide。有太多细节可以在一个答案中检查每一个。

Answer 2

用于与异构MSSQL数据库进行通信。有两种选择。

1）使用专用的Oracle Database Gateway for SQL Server。 Configuring Oracle Database Gateway for SQL Server 2）用于ODBC的Oracle数据库网关。 Configuring Oracle Database Gateway for ODBC

简单示例为SQL Server配置Oracle数据库网关

ORACLE_HOME \ dg4msql \管理员\ initdg4msql.ora

   HS_FDS_CONNECT_INFO=host_name:port_name//database_name

ORACLE_HOME \网络\管理员\的listener.ora

SID_LIST_LISTENER=

############# MS SQL ####################
   (SID_LIST=
      (SID_DESC= 
         (SID_NAME=dg4msql)
         (ORACLE_HOME=oracle_home_directory)
         (PROGRAM=dg4msql)
      )
   )
##########################################

重启侦听器

lsnrctl stop
lsnrctl start

ORACLE_HOME \网络\管理员\的tnsnames.ora

connect_descriptor_mssql=
   (DESCRIPTION=
      (ADDRESS=
         (PROTOCOL=TCP)
         (HOST=host_name_oracle_gateway_host)
         (PORT=port_number_listener_1521)
      )
      (CONNECT_DATA=
         (SID=dg4msql))
      (HS=OK))



SQL> CREATE PUBLIC DATABASE LINK name_dblink CONNECT TO "user" IDENTIFIED BY "password" USING 'connect_descriptor_mssql';
 SQL> SELECT * FROM DUAL@dblink;

生产服务器Oracle 11.2.0.4的示例

/home/oracle/app/oracle/product/11.2.0/dbhome_1/dg4msql/admin/inittch7.ora

   HS_FDS_CONNECT_INFO=[10.89.250.87]:1433/

/home/oracle/app/oracle/product/11.2.0/dbhome_1/dg4msql/admin/inittch7.ora

 HS_FDS_CONNECT_INFO=[10.89.250.88]:1433/

/home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1525))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.89.251.242)(PORT = 1521))
    )
  )

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
        (GLOBAL_DBNAME = ssps)
        (ORACLE_HOME = /home/oracle/app/oracle/product/11.2.0/dbhome_1)
        (SID_NAME = ssps)
    )
     (SID_DESC=
        (SID_NAME=tch8)
        (ORACLE_HOME=/home/oracle/app/oracle/product/11.2.0/dbhome_1)
        (PROGRAM=dg4msql)
          )
    (SID_DESC=
         (SID_NAME=tch7)
         (ORACLE_HOME=/home/oracle/app/oracle/product/11.2.0/dbhome_1)
         (PROGRAM=dg4msql)
         )

  )
ADR_BASE_LISTENER = /home/oracle/database

/home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora

SSPS_1 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 10.89.251.242)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = ssps)
    )
  )



atch7 =
  (DESCRIPTION=
      (ADDRESS=(PROTOCOL=tcp)(HOST= 10.89.251.242)(PORT=1521))
      (CONNECT_DATA=(SID=tch7))
      (HS=OK)
    )


atch8 =
  (DESCRIPTION=
      (ADDRESS=(PROTOCOL=tcp)(HOST=10.89.251.242)(PORT=1521))
      (CONNECT_DATA=(SID=tch8))
      (HS=OK)
    )




 CREATE DATABASE LINK ATCH7.GIFT.KRSK.MPS
      CONNECT TO "asuzm_link" IDENTIFIED BY <ENTER USER PASSWORD HERE>
      USING 'atch7'
    /

CREATE DATABASE LINK ATCH8.GIFT.KRSK.MPS
  CONNECT TO "asuzm_link" IDENTIFIED BY <ENTER USER PASSWORD HERE>
  USING 'atch8'
/

如何将SQL Server数据库配置为TNSNAME.ora？

2 个答案: