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  • oracle创建dblink问题

    1、如果在本地"D:oracleproduct11.2.0dbhome_1NETWORKADMIN nsnames.ora"中设置 服务器数据库连接,必须再服务器设置同一个名字的配置:

    例如:

    本地

    1 prepaid =
    2   (DESCRIPTION =
    3   (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.4)(PORT = 1521))
    4   (CONNECT_DATA =
    5   (SERVER = DEDICATED)
    6   (SID = prepaid)
    7   )
    8   )

    服务器

    1 prepaid =
    2   (DESCRIPTION =
    3   (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    4   (CONNECT_DATA =
    5   (SERVER = DEDICATED)
    6   (SID = prepaid)
    7   )
    8   )

    创建dblink的语句

    1 create public database link linkname connect to s_user identified by s_pwd using 'prepaid';

    如果只在本地创建,查询报错:

    SQL> select * from scott.emp@mylink;
    select * from scott.emp@mylink
                            *1 行出现错误:
    ORA-12154: TNS: 无法解析指定的连接标识符

    ---------------------------------------------------------------

    2、不设置,在创建语句中直接指定

    create public database link dblinkname connect to username identified by password
       using '(DESCRIPTION =
    (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST = database_ip)(PORT = 1521))
    )
    (CONNECT_DATA =
    (SERVICE_NAME =servicename)
    )
    )';
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  • 原文地址:https://www.cnblogs.com/kingxiaozi/p/4813445.html
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