Oracle 同义词的创建

create public database link test_link
connect to csservicedb identified by huawei123
using '  (DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.119)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl)
)
)' ;
Database link created.

SQL> desc cs_user;
ERROR:
ORA-04043: object cs_user does not exist

SQL> desc cs_user@test_link;
Name					   Null?    Type
----------------------------------------- -------- ----------------------------
PK_BUR_USERID				   NOT NULL VARCHAR2(18)
BUR_USER_FLAG				   NOT NULL VARCHAR2(32)

select * from dba_objects where object_type='DATABASE LINK';
select owner, db_link from dba_db_links;  -- 查看dblink的owner及link名字

SQL> DROP PUBLIC DATABASE LINK csmain;
Database link dropped.
SQL> DROP PUBLIC DATABASE LINK csserver;
Database link dropped.
SQL>

SQL> create  database link CSMAIN
connect to csmaindb identified by huawei123
using '  (DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.119)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl)
)
)' ;
SQL> select owner, db_link from dba_db_links;
OWNER       DB_LINK
------------------------------ ---------------
CS_AUX       CSMAIN
CS_AUX       CSSERVER