创建数据库链接 - DBLINK

--创建数据库链接

CREATEPUBLIC DATABASE LINKDBLINK_112

CONNECTTO BJSLG

IDENTIFIEDBY BJSLG

USING'(DESCRIPTION =

    (ADDRESS_LIST =

      (ADDRESS = (PROTOCOL = TCP)(HOST= 130.10.7.112)(PORT= 1521))

    )

    (CONNECT_DATA =

      (SERVICE_NAME= ORCL)

    )

  )';

--使用dblink

  SELECT *

     FROM SJCJ_RYDJBXX@DBLINK_112

 WHERE ROWNUM=1;