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ZBCDB3 =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.50.6)(PORT = 1523))
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    (CONNECT_DATA =
      (SERVICE_NAME = zbcdb3)
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)
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create database link dcmdb connect to dcmdb identified by dcmoptr using 'zbcdb3' ;
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select * from tabname@dcmdb where 1=1;
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     (ADDRESS_LIST =
       (ADDRESS = (PROTOCOL = TCP)(HOST = ¶Ô·½Oracle·þÎñÆ÷µÄIPµØÖ·)(PORT = ¶Ë¿ÚºÅ))
     )
     (CONNECT_DATA =
(SERVICE_NAME = ¶Ô·½Oracle·þÎñÆ÷·þÎñÃû)
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