SQL> create user          proxy_user
  2  identified by        pw_proxy
  3  default tablespace   users
  4  temporary tablespace temp;

User created.

SQL> create user          target_user
  2  identified by        pw_target
  3  default tablespace   users
  4  temporary tablespace temp
  5  quota unlimited on   users;

User created.

SQL> alter user target_user grant connect through proxy_user;

User altered.

SQL> grant create session,
  2        create table
  3  to    target_user;

Grant succeeded.

SQL> connect target_user/pw_target@dev
Connected.
SQL> create table targets_table (
  2    col  varchar2(10)
  3  );

Table created.

SQL> insert into targets_table values ('foo');

1 row created.

SQL> connect proxy_user[target_user]/pw_proxy@dev
ERROR:
ORA-01017: invalid username/password; logon denied 


Warning: You are no longer connected to ORACLE.

==========================

Thanks

Ive just started working with 10.2 and still have the new features guide on my to do list. Notes like this enthuse me to read the docs again.

mat.

As Michel says; I believe that your demo may also work with less privileges for the reasons stated.

You allude to another possible use; testing performance for a specific user without requiring their password. Is this just a convenience or is there more to this? Would you care to say a few more words?

Regards.