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DBA: ÓµÓÐÈ«²¿ÌØÈ¨£¬ÊÇϵͳ×î¸ßȨÏÞ£¬Ö»ÓÐDBA²Å¿ÉÒÔ´´½¨Êý¾Ý¿â½á¹¹¡£
RESOURCE:ÓµÓÐResourceȨÏÞµÄÓû§Ö»¿ÉÒÔ´´½¨ÊµÌ壬²»¿ÉÒÔ´´½¨Êý¾Ý¿â½á¹¹¡£
CONNECT:ÓµÓÐConnectȨÏÞµÄÓû§Ö»¿ÉÒԵǼOracle£¬²»¿ÉÒÔ´´½¨ÊµÌ壬²»¿ÉÒÔ´´½¨Êý¾Ý¿â½á¹¹¡£
¶ÔÓÚÆÕͨÓû§£ºÊÚÓèconnect, resourceȨÏÞ¡£
¶ÔÓÚDBA¹ÜÀíÓû§£ºÊÚÓèconnect£¬resource, dbaȨÏÞ¡£
2¡¢ÏµÍ³È¨ÏÞÊÚȨÃüÁ
[ϵͳȨÏÞÖ»ÄÜÓÉDBAÓû§ÊÚ³ö£ºsys, system(×ʼֻÄÜÊÇÕâÁ½¸öÓû§)]
ÊÚȨÃüÁSQL> grant connect, resource, dba to Óû§Ãû1 [,Óû§Ãû2]...;
[ÆÕͨÓû§Í¨¹ýÊÚȨ¿ÉÒÔ¾ßÓÐÓësystemÏàͬµÄÓû§È¨ÏÞ£¬µ«ÓÀÔ¶²»ÄÜ´ïµ½ÓësysÓû§ÏàͬµÄȨÏÞ£¬systemÓû§µÄȨÏÞÒ²¿ÉÒÔ±»»ØÊÕ¡£]
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SQL> connect system/manager
SQL> Create user user50 identified by user50;
SQL> grant connect, resource to user50;
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SQL> select * from dba_role_privs;
SQL> select * from dba_sys_privs;
SQL> select * from role_sys_privs;
ɾ³ýÓû§£ºSQL> drop user Óû§Ãû cascade;  //¼ÓÉÏcascadeÔò½«Óû§Á¬Í¬Æä´´½¨µÄ¶«Î÷È«²¿É¾³ý
3¡¢ÏµÍ³È¨ÏÞ´«µÝ£º
Ôö¼ÓWITH ADMIN OPTIONÑ¡ÏÔòµÃµ½µÄȨÏÞ¿ÉÒÔ´«µÝ¡£
SQL> grant connect, resorce to user50 with admin option;  //¿ÉÒÔ´«µÝËù»ñȨÏÞ¡£
4¡¢ÏµÍ³È¨ÏÞ»ØÊÕ£ºÏµÍ³È¨ÏÞÖ»ÄÜÓÉDBAÓû§»ØÊÕ
ÃüÁSQL> Revoke connect, resource from user50;
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1£©Èç¹ûʹÓÃWITH ADMIN OPTIONΪij¸öÓû§ÊÚÓèϵͳȨÏÞ£¬ÄÇô¶ÔÓÚ±»Õâ¸öÓû§ÊÚÓèÏàͬȨÏÞµÄËùÓÐÓû§À´Ëµ£¬È¡Ïû¸ÃÓû§µÄϵͳȨÏÞ²¢²»»á¼¶ÁªÈ¡ÏûÕâЩÓû§µÄÏàͬȨÏÞ¡£
2£©ÏµÍ³È¨ÏÞÎÞ¼¶Áª£¬¼´AÊÚÓèBȨÏÞ£¬BÊÚÓèCȨÏÞ£¬Èç¹ûAÊÕ»ØBµÄȨÏÞ£¬CµÄȨÏÞ²»ÊÜÓ°Ï죻ϵͳȨÏÞ¿ÉÒÔ¿çÓû§»ØÊÕ£¬¼´A¿ÉÒÔÖ±½ÓÊÕ»ØCÓû§µÄȨÏÞ¡£
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1¡¢ÊµÌåȨÏÞ·ÖÀࣺselect, update, insert, alter, index, delete, all  //all°üÀ¨ËùÓÐȨÏÞ
execute  //Ö´Ðд洢¹ý³ÌȨÏÞ
user01:
SQL> grant select, update, insert on product to user02;
SQL> grant all on product to user02;
user02:


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ÃüÁîÐÐά»¤Oracle AWR

ÃüÁîÐÐά»¤Oracle AWR
 
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OracleϵÁУº¼Ç¼Record

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Oracle Rman¿çresetlogs°æ±¾»Ö¸´

RMAN> startup nomount;
RMAN> sql 'alter session set nls_date_format=''yyyy-mm-dd hh24:mi:ss''";
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RMAN> restore controlfile from autobackup until time '2009-03-10 18:15:00';
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oracle 10 em

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Æô¶¯·þÎñ£ºemctl start dbconsole
¹Ø±Õ·þÎñ£ºemctl stop dbconsole
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