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1.查看dblink
select owner,object_name from dba_objects where object_type='DATABASE LINK';
或者
select * from dba_db_links;
2.創(chuàng)建dblink
前提:
grant create public database link,create database link to myAccount;
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)
)
)';
如果在create之后不加public,則創(chuàng)建的dblink就不是公共的,就只有創(chuàng)建者可以使用了.
補充:如何確定數據庫的servicename:
show parameter[s] service_names;
select name,value from v$parameter where name='service_names'
4.刪除
drop public database link dblinkname;
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