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alter user username identified by newPassword;
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CREATE USER username IDENTIFIED BY password;
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GRANT CREATE SESSION TO username;(²Å¿ÉµÇ¼)
GRANT CONNENT,RESOURCE TO username;(½øÐд´½¨±íÖ®ÀàµÄ²Ù×÷)
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REVOKE ȨÏÞ ON Óû§±íÃû³Æ from Óû§;
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What circumstances we use ALL_ROWS and what circumstances we use FIRST_ROWS optimizer mode? This article is written in oracle9i.
First_rows attempts to optimize the query to get the very first row back to the client as fast as possible. This is good for an interactive client server environment wher ......
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select sess.sid,sess.serial#, lo.oracle_username,lo.os_user_name,ao.object_name,lo.locked_mode
from v$locked_object lo,dba_objects ao,v$session sess
where ao.object_id = lo.object_id
and lo.session_id = sess.sid;
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alter system kill session '273,45';
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