应用:用dblink连接两个实例

sql 代码

--=============================================================================
-- Create database link which link to CMM database
--=============================================================================
CREATE PUBLIC DATABASE LINK  tocmm
   CONNECT TO otapush IDENTIFIED BY cmm
   USING '(DESCRIPTION =
     (ADDRESS_LIST =
       (ADDRESS = (PROTOCOL = TCP)(HOST = 10.168.209.110)(PORT = 1521))
     )
     (CONNECT_DATA =
       (SID = cpad)
     )
   )';
--

sql 代码

--=============================================================================
-- Create synonymous to CMM database link
--      otatasksubscribers_back
--      otatask
--=============================================================================
CREATE SYNONYM otatask FOR otatask@tocmm;

CREATE SYNONYM otatasksubscribers_back FOR otatasksubscribers_back@tocmm;

然后就可以用otatask,otatasksubscribers_back作别名调用另外实例的表了...