Dba 有时需要以别人身份注册，但询问其口令不是好习惯，以后他也可能轻易将口令给别人 .
下面的脚步可以以别人身份注册：
ACCEPT username CHAR PROMPT Become User>
ACCEPT temp_pass CHAR PROMPT Temporary Password>
SET TERMOUT OFF
COLUMN password NOPRINT NEW_VALUE current_password
SELECT password FROM dba_users WHERE username = UPPER( &.&.username ).
SET TERMOUT ON
ALTER USER &.&.username IDENTIFIED BY &.&.temp_pass.
CONNECT &.&.username/&.&.temp_pass
-- 执行Sql命令
-- 如0select * from tab.
PAUSE Press ENTER to reset the password back to what is was.
ALTER USER &.&.username IDENTIFIED BY VALUES &.¤t_password .