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conn / as sysdba;
create user t1 identified by t1;
create user t2 identified by t2;
grant connect to t1,t2;
grant create table, create view to t1 with admin option;
conn t1/t1
grant create table to t2;
conn / as sysdba;
select * from dba_sys_privs where grantee in('T1', 'T2');
GRANTEE PRIVILEGE ADM
------------------------------ ---------------------------------------- ---
T1 CREATE TABLE YES
T1 CREATE VIEW YES
T2 CREATE TABLE NO
with admin option ¿Éʹ±»ÊÚÓèȨÏÞÕßÓÐȨתÊÚÆäËûÈË¡£
revoke create table, create view from t1;
select * from dba_sys_privs where grantee in('T1', 'T2');
GRANTEE PRIVILEGE ADM
------------------------------ ---------------------------------------- ---
T2 CREATE TABLE NO
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conn test/test
grant select on t to t1 with grant option;
conn t1/t1
grant select on test.t to t2;
conn test/test
select * from dba_tab_privs where grantee in('T1', 'T2');
GRANTEE OWNER TABLE_NAME GRANTOR PRIVILEGE
------------------------------ ------------------------------ ------------------------------ ------- --------------------------------
T2 TEST T T1 SELECT
T1 TEST T TEST SELECT
revoke select on t from t1;
select * from dba_tab_privs where grantee in('T1', 'T2');
SQL> select * from dba_tab_privs where grantee in('T1', 'T2');
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create role ttt;
grant create table, create user, create session to ttt with admin option;
grant select on test.t to ttt with grant option;
SQL> grant select on test.t to ttt with grant option;
grant select on test.t to ttt with grant option
ORA-01926:
 
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grant select on test.t to ttt;
create user d identified by d;
create user e identified by e;
grant ttt to d with admin option;
conn d/d
grant ttt to e;
select * from test.t;
SQL> select * from test.t;
conn / as


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Oracle DBA Á½ÈÕËٳɿγÌ

http://www.oracle.com/technology/global/cn/obe/2day_dba/index.html
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Oracle Enterprise Manager Êý¾Ý¿â¿ØÖÆÈëÃÅ
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ÐÞ¸ÄOracleµÄ½ø³ÌÊý[processes]¼°»á»°Êý[sessions]

ÐÞ¸ÄOracleµÄ½ø³ÌÊý[processes]¼°»á»°Êý[sessions]
1.ͨ¹ýSQLPlusÐÞ¸Ä
OracleµÄsessionsºÍprocessesµÄ¹ØÏµÊÇ
         sessions=1.1*processes + 5
ʹÓÃsys£¬ÒÔsysdbaȨÏ޵Ǽ£º
SQL> show parameter processes;
NAME        &n ......

OracleÖÐÌí¼ÓJob

OracleÖÐÌí¼ÓJob
 --ÿ15·ÖÖÓ trunc(sysdate+1/96,'MI')/*5:Mins*/ sysdate + 5/(60*24)
SQL> variable jobno number;
SQL> begin
  2  dbms_job.submit(:jobno,'´æ´¢¹ý³ÌÃû;',sysdate,'/*1:Hr*/ sysdate + 1/24' );
  3  commit;
  4  end;
  5  /
......

ORACLE³£ÓÃÃüÁî

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ÒªÏëÆô¶¯»ò¹Ø±ÕORACLEϵͳ±ØÐëÊ×ÏÈÇл»µ½ORACLEÓû§£¬ÈçÏÂ
su - oracle
a¡¢Æô¶¯ORACLEϵͳ
oracle>svrmgrl
SVRMGR>connect internal
SVRMGR>startup
SVRMGR>quit
b¡¢¹Ø±ÕORACLEϵͳ
oracle>svrmgrl
SVRMGR>connect internal
SVRMGR& ......

linuxÏÂoracleµÄ×Ô¶¯±¸·Ý

linuxÏÂoracleµÄ×Ô¶¯±¸·Ý
http://hohai2002.blog.163.com/blog/static/1628166912010323103227543/
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ʹÓÃcrontab ÅäÖÃÎļþ
crontab -u root /root/root_cron
ʹÓÃcrontab -l ¼ì²é
#Îļþ root_cron
01 00 * * * /etc/root_exp.sh
#Îļþroot_exp.sh
su - oracle -c /oracle/db ......
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