切换到其他用户

SQL> select 'alter user &&1 identified by &&1;' nl,
  2         'connect &&1/&&1' nl,
  3         'alter user &&1 identified by values '''||u.password||''';' nl
  4  from   sys.dba_users u
  5  where  u.username = upper('&&1')
  6    and  u.username <> user
  7  /
alter user scott identified by scott; connect scott/scott alter user scott identified by values 'F894844C34402B67';

SQL> alter user scott identified by scott;

User altered

SQL> connect scott/scott
Connected to Oracle Database 10g Enterprise Edition Release 10.1.0.2.0
Connected as scott

SQL> alter user scott identified by values 'F894844C34402B67';

User altered

SQL>
SQL> select 'Connected as '||USER||' on '||global_name||'.'
  2  from   global_name;
Connected as SCOTT on ORCL.

SQL> conn scott/tiger;
Connected to Oracle Database 10g Enterprise Edition Release 10.1.0.2.0
Connected as scott