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1.forcing log switches
sql> alter system switch logfile;
 
2.forcing checkpoints
sql> alter system checkpoint;
 
3.adding online redo log groups
sql> alter database add logfile [group 4]
sql> ('/disk3/log4a.rdo','/disk4/lo ......

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ALTER TABLESPACE app_data
      ADD DATAFILE 'u01/oradata/userdata03.dbf'
SIZE 200M;
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CREATE TABLESPACE userdata
DATAFILE 'u01/oradata/userdata03.dbf' SIZE 100M
AUTOEXTEND ON NEXT 5M MAXSIZE 200M;
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CREATE UNDO TABLESPACE undo1
DATAFILE ' ......

Oracle ÍâÁ¬½ÓºÍ £¨+£©ºÅµÄÓ÷¨

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1. LEFT OUTER JOIN£º×óÍâ¹ØÁª
SELECT e.last_name, e.department_id, d.department_name 
from employees e 
LEFT OUTER JOIN department ......

AIX Oracle RAC Éý¼¶µ½10.2.0.4.0ÒªÌرð×¢ÒâµÄÎÊÌâ

AIX Oracle RAC Éý¼¶µ½10.2.0.4.0¹ý³ÌÓÐÈçϱ¨´í(Ö±½ÓÉý¼¶µ½10.2.0.4²»ÐèÒªÓ¦ÓÃPatch:6160398)£º
 root@bwgl_db2:/u01/app/oracle/crs_1/bin# /u01/app/oracle/crs_1/install/root102.sh
Error : Please change the CRS_ORACLE_USER id <oracle> to have the following OS capabilities :
  <CAP_BYP ......

Oracle RAC 10.2.0.1 Éý¼¶ 10.2.0.4 ¼òµ¥ÃèÊö

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If you also plan to apply this patch to Oracle Clusterware,
ensure that you apply the patch to Oracle Clusterware before
applying it to Oracle Database. This is because Oracle Clusterware
hould always be at the same or later version as the database.
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