Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

as5°²×°oracle²½Öè


Ò»:½¨Á¢Óû§,Óû§×é:
groupadd dba
groupadd oinstall
useradd oracle -g oinstall -G dba
passwd oracle
¶þ:ÐÞ¸Ä˵Ã÷,¸ÄΪas4
vi /etc/redhat-release
Ð޸ĺóµÄÄÚÈÝ:
Red Hat Enterprise Linux AS release 4 (Nahant Update 4)
#Red Hat Enterprise Linux Server release 5.4 (Tikanga)
Èý:¸Ähost(²»±Ø,ÍøÉÏ˵ÍøÂç¼ì²éͨ²»¹ý,Æäʵ¿ÉÒÔ²»½øÐÐÍøÂç¼à²ì,ÔÚ°²×°oracleʱÓÐÒ»²½ÊǼì²é,°ÑÍøÂç¼à²ìµÄ¹´È¥µô¼´¿É)
vi /etc/hosts
Ð޸ĺóµÄÄÚÈÝ:
192.168.10.172               localhost.localdomain localhost
ËÄ:export LC_ALL=en_US(Èç¹ûas5°²×°Ê±ÊÇenglishʱ,²»±Ø)
Îå:ÔÚ/etc/sysctl.confÌí¼Ó
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
# semaphores: semmsl, semmns, semopm, semmni
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default=262144
net.core.rmem_max=262144
net.core.wmem_default=262144
net.core.wmem_max=262144
ʹ֮ÉúЧ:
/sbin/sysctl -p
Áù:ÔÚ/etc/security/limits.confÖÐÌí¼Ó
*               soft    nproc   2047
*               hard    nproc   16384
*               soft    nofile  1024
*               hard    nofile  65536
Æß:ÔÚ/etc/pam.d/loginÖÐÌí¼Ó
session    required     /lib/security/pam_limits.so
°Ë:½ûÖ¹secure linux
vi /etc/selinux/config
ÐÞ¸ÄÒÔÏÂÐÐ:
SELINUX=disabled
¾Å:vi ~/.bash_profile
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/bin
export PATH
ORACLE_BA


Ïà¹ØÎĵµ£º

oracle ºǫ́½ø³Ì

Ò»¸öʵÀý¿ÉÒÔÓжà¸öºǫ́½ø³Ì,µ«ÊÇ£¬²¢²»ÊÇÿһ¸öºǫ́½ø³Ì¶¼»á³ö³ö£¬Í¨¹ýÊÓͼv$bgprocess¿ÉÒԲ鿴ºǫ́½ø³ÌÐÅÏ¢¡£
Ò»°ãÎÒÃÇÊÇͨ¹ýÒÔÏÂsql²é¿´ºǫ́±ØÐëµÄºǫ́½ø³Ì.
1.²é¿´ºǫ́½ø³Ì
select paddr,name,description
from v$bgprocess
order by paddr desc
£»
2.Õâ¸öÊÓͼÖÐpaddr<>'00'µÄÐж¼ÊÇϵͳÉÏÅäÖúÍÔËÐеĽø³ ......

Oracle³£ÓòÙ×÷(²»¶Ï¸üÐÂ)

¹ØÓÚ°²×°£º
    °²×°Oracle10gʱ£¬ËùÊäÈëµÄÈ«¾ÖµÄSIDÃû³ÆΪtest(¼´Êý¾Ý¿âÃû£¬²»ÄÜ×÷ΪÓû§ÃûÀ´µÇ¼)£¬ÃÜÂëΪtest(¸ÃÃÜÂë¶ÔÓ¦µÄÓû§Îªsystem£¬sysµÈ)¡£
 
    ×°Íêºó£¬Èô´ÓÍøÒ³ÉϵǼoracle£¬ÔòÊäÈëurl£ºhttp://localhost:1158/em 
    ÈôÎÞ·¨ÏÔ ......

Oracle DBMS_METADATA Ó÷¨Àý×Ó

rom£ºhttp://www.psoug.org/reference/dbms_metadata.html
General Information
Source
{ORACLE_HOME}/rdbms/admin/dbmsmeta.sql
First Available
9.0.1
¼¸¸ö³£Óùý³Ì»òº¯Êý£º
GET_DDL
Fetch DDL for objects
dbms_metadata.get_ddl(
object_type IN VARCHAR2,
name        IN VA ......

Oracle ·ÖÎöº¯Êý·Ö×éÀÛ¼Ó£¡

Óû§ºÅÂë µÇ½ʱ¼ä
1300000000 2010-01-01
1300000001 2010-01-01
1300000002 2010-01-02
1300000001 2010-01-02
1300000003 2010-01-03
1300000002 2010-01-03
1300000004 2010-01-04
1300000003 2010-01-04
1300000004 2010-01-02
1300000006 2011-01-04
1300000001 2011-01-04
 ÌÞ³ýÖظ´µ ......

ORACLE EXPLAIN PLANµÄ×ܽá

ÔÚORACLEÊý¾Ý¿âÖÐ,ÐèÒª¶ÔSQLÓï¾ä½øÐÐÓÅ»¯µÄ»°ÐèÒªÖªµÀÆäÖ´Ðмƻ®,´Ó¶øÕë¶ÔÐԵĽøÐе÷Õû.ORACLEµÄÖ´Ðмƻ®µÄ»ñµÃÓм¸ÖÖ·½·¨,ÏÂÃæ¾ÍÀ´×ܽáÏÂ
1¡¢EXPLAINµÄʹÓÃ
    Oracle RDBMSÖ´ÐÐÿһÌõSQLÓï¾ä£¬¶¼±ØÐë¾­¹ýOracleÓÅ»¯Æ÷µÄÆÀ¹À¡£ËùÒÔ£¬Á˽âÓÅ»¯Æ÷ÊÇÈçºÎÑ¡Ôñ(ËÑË÷)·¾¶ÒÔ¼°Ë÷ÒýÊÇÈçºÎ±»Ê¹Óõģ¬¶ÔÓÅ»¯SQLÓï ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ