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1.ʹÓÃOracleÓû§µÇ¼ϵͳ£¬ÔÚCMDÖÐÆôÓÃSQLPLUS
2.sqlplus /nolog
3.SQL> connect /as sysdba
¡¡¡¡¡¡   Connected.
4.SQL> alter user system account unlock;
¡¡¡¡¡¡    User altered.
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1.SQL> alter user system account lock;
¡¡¡¡¡¡    User altered.
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1.SQL> alter user system identified by tiger;


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Oracle 9i ´Ó9.2.0.1Éý¼¶µ½ 9.2.0.6 ²½Öè

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1.ÔÚÊý¾Ý¿â·þÎñÆ÷ÉÏÒÔAdministratorÉí·ÝµÇ¼µ½Windows
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3.Í£Ö¹Distributed Transaction Coordinator·þÎñ
4.±¸·ÝÓëOracleÊý¾Ý¿âÏà¹ØµÄËùÓÐÎļþ£¨°üÀ¨OracleÊý¾Ý¿âÈí¼þ¼°Êý¾ÝÎļþ£©£¬°ÑÕâЩÎļþ°´Ô­ÓеÄĿ¼½á¹¹¸´ÖƵ½°²È«µÄµØ·½£¬²¢× ......

ORACLE ORA

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SQL> grant select on sys.x$bh to t1;
grant select on sys.x$bh to t1
ERROR at line 1:
ORA-02030: can only select from fixed tables/views
¶ÔÓÚfixed tables/viewsÖ»ÄÜselect
Èç¹ûÏë°Ñx$bhµÄselectȨÏÞgrant¸øÆäËûÓû§Ôõô°ìÄØ,¿ÉÒÔ±äͨһÏÂ
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# yum install libXp-devel
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spool portal_schema.sql
SELECT DBMS_METADATA.GET_DDL('TABLE',u.table_name)
from USER_TABLES u;
SELECT DBMS_METADATA.GET_DDL('INDEX',u.index_name)
from USER_INDEXES u;
spool off;
2. ......
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