Sunday, December 23, 2007


case : scott user wantt to access objects of the sales user in same database by using dblink.(assume he has select any table privilege)

SQL> conn scott/tiger

SQL> select * from session_privs;



14 rows selected.

SQL> create database link proddb connect to sales identified by password using 'proddblocal'
create database link proddb connect to sales identified by password using 'proddblocal'
ERROR at line 1:
ORA-02082: a loopback database link must have a connection qualifier
SQL> ed
Wrote file afiedt.buf
1 create database link proddb@proddb
2 connect to sales identified by password
3* using 'proddblocal'
SQL> /

Database link created.

SQL> select count(*) from dual@proddb ;


SQL> select * from user_db_links;


proddb.sales.ORG@proddb sales password proddblocal


SQL> conn sales/password@proddblocal
SQL> select count(*) from tsales;


SQL> conn scott/tiger
SQL> select count(*) from tsales@proddb@proddb;



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it was very useful to me.. i need data guard like this can u..

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