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 ×îÐÂÎÄÕ : Oracle

Oracle Ðм¶´¥·¢Æ÷ѧϰ

 Oracle ´¥·¢Æ÷ÓÐÓï¾ä¼¶´¥·¢Æ÷ºÍÐм¶´¥·¢Æ÷
Óï¾ä¼¶´¥·¢Æ÷  µ±É¾³ý²¿ÃűíÖеIJ¿ÃźÅʱ£¬Í¬Ê±É¾³ýµôÔ±¹¤±íÖв¿ÃźÅΪ£ºold.deptnoµÄ¼Ç¼
create or replace trigger del_dept_id
after delete on dept
for each row
begin
delete from emp where deptno=:old.deptno;
end;
µ±Íù²¿Ãűí²åÈëʱ£¬Í¬Ê±ÔÚÔ±¹¤±íÖвåÈëÒ»¾ä£¬ÆäÖУºnew.deptno Ϊ²åÈëµÄ²¿ÃűàºÅ
create or replace trigger insert_dept
after insert on dept
for each row
begin
insert into emp(empno,ename,job,mgr,sal,hiredate,deptno) values('1234','JAMES','job',7566,3456,sysdate,:new.deptno);
end;
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 create or replace trigger update_dept
 after update on dept
 for each row
 begin
 update emp set deptno=:new.deptno  where deptno=:old.deptno;
 end;
/
ÉÏÃæµÄnew ±íºÍold±íÊÇÔÚÄÚ´æµ±ÖеÄ
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Oracle Óï¾ä¼¶´¥·¢Æ÷

Ïȹ¹ÔìÒ»¸ö±í:
create table emp2(
id number(2),
name varchar(10),
currdate date,
action varchar2(1)
)
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create or replace trigger d_i_u_emp2
after insert or update or delete on mysort
begin
if inserting then
insert into emp2 values (12,'dog',sysdate,'i');
elsif deleting then
insert into emp2 values (12,'dog',sysdate,'d');
elsif updating then
insert into emp2 values (12,'dog',sysdate,'u');
end if;
end;
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Ìæ»»´¥·¢Æ÷Ö»Äܽ¨ÔÚÊÓͼÉÏÃæ ......

ORACLE ebs 11.5.10.2 for linux as4 °²×°ÐĵÃ

 ORACLE ebs 11.5.10.2 for linux as4 °²×°ÐĵÃ
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µÚ¶þÕ Èí¼þ×¼±¸:
2.1 Oracle EBS 11.5.10 ϵͳÈí¼þ
ÏÂÔØµØÖ·£ºhttp://edelivery.oracle.com/
2.2 ²Ù×÷ϵͳºÍµÚÈý·½Èí¼þ
RedHat °²×°:
RedHat AdvancedServer 4.0ÒòΪÕâ¸ö°æ±¾´òµÄ²¹¶¡ÉÙ¡£
jsdk1.4.2 for linux x86°æ±¾ http://java.sun.com/
µÚÈýÕÂ11i(11.5.10) for RedHat °²×°
µÚÒ»½Ú RedHat 4 µÄ°²×°
3£®1£®1
°²×°RedHat 4
3£®1£®2
Ñ¡ÔñÊÖ¶¯·ÖÇø£¬ÎÒ´´½¨µÄ·ÖÇøÈ ......

ORACLE ebs 11.5.10.2 for linux as4 °²×°ÐĵÃ

 ORACLE ebs 11.5.10.2 for linux as4 °²×°ÐĵÃ
metalink:
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µÚÈýÕÂ 11.5.10 For Linux °²×°
µÚËÄÕ °²×°ºóµÄά»¤ºÍÎÊÌâ½â¾ö
µÚÎåÕ ebs¶ÔÍâµÄ·¢²¼
ORACLE EBS 11.5.10 ѧϰ±Ê¼Ç£¨°²×°Æª£©
ǰ ÑÔ
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swap 2G
£¯¡¡¡¡ £±£²G
£¯boot 300m
£¯Stage11i 28G
£¯opt 10G
£¯d01 130G
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µÚ¶þÕ Èí¼þ×¼±¸:
2.1 Oracle EBS 11.5.10 ϵͳÈí¼þ
ÏÂÔØµØÖ·£ºhttp://edelivery.oracle.com/
2.2 ²Ù×÷ϵͳºÍµÚÈý·½Èí¼þ
RedHat °²×°:
RedHat AdvancedServer 4.0ÒòΪÕâ¸ö°æ±¾´òµÄ²¹¶¡ÉÙ¡£
jsdk1.4.2 for linux x86°æ±¾ http://java.sun.com/
µÚÈýÕÂ11i(11.5.10) for RedHat °²×°
µÚÒ»½Ú RedHat 4 µÄ°²×°
3£®1£®1
°²×°RedHat 4
3£®1£®2
Ñ¡ÔñÊÖ¶¯·ÖÇø£¬ÎÒ´´½¨µÄ·ÖÇøÈ ......

Oracle SQL Loader

Ò»£ºSQL Loader µÄÌØµã
oracle×Ô¼º´øÁ˺ܶàµÄ¹¤¾ß¿ÉÒÔÓÃÀ´½øÐÐÊý¾ÝµÄÇ¨ÒÆ¡¢±¸·ÝºÍ»Ö¸´µÈ¹¤×÷¡£µ«ÊÇÿ¸ö¹¤¾ß¶¼ÓÐ×Ô¼ºµÄÌØµã¡£
±ÈÈç˵expºÍimp¿ÉÒÔ¶ÔÊý¾Ý¿âÖеÄÊý¾Ý½øÐе¼³öºÍµ¼³öµÄ¹¤×÷£¬ÊÇÒ»ÖֺܺõÄÊý¾Ý¿â±¸·ÝºÍ»Ö¸´µÄ¹¤¾ß£¬Òò´ËÖ÷ÒªÓÃÔÚÊý¾Ý¿âµÄÈȱ¸·ÝºÍ»Ö¸´·½Ãæ¡£ÓÐ×ÅËٶȿ죬ʹÓüòµ¥£¬¿ì½ÝµÄÓŵ㣻ͬʱҲÓÐһЩȱµã£¬±ÈÈçÔÚ²»Í¬°æ±¾Êý¾Ý¿âÖ®¼äµÄµ¼³ö¡¢µ¼ÈëµÄ¹ý³ÌÖ®ÖУ¬×Ü»á³öÏÖÕâÑù»òÕßÄÇÑùµÄÎÊÌ⣬Õâ¸öÒ²ÐíÊÇoracle¹«Ë¾×Ô¼º²úÆ·µÄ¼æÈÝÐÔµÄÎÊÌâ°É¡£
sql loader ¹¤¾ßȴûÓÐÕâ·½ÃæµÄÎÊÌ⣬Ëü¿ÉÒÔ°ÑһЩÒÔÎı¾¸ñʽ´æ·ÅµÄÊý¾Ý˳ÀûµÄµ¼Èëµ½oracleÊý¾Ý¿âÖУ¬ÊÇÒ»ÖÖÔÚ²»Í¬Êý¾Ý¿âÖ®¼ä½øÐÐÊý¾ÝÇ¨ÒÆµÄ·Ç³£·½±ã¶øÇÒͨÓõŤ¾ß¡£È±µã¾ÍËٶȱȽÏÂý£¬ÁíÍâ¶ÔblobµÈÀàÐ͵ÄÊý¾Ý¾ÍÓеãÂé·³ÁË¡£
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SQL*Loader: Release 10.2.0.1.0 - Production on ÐÇÆÚËÄ 7ÔÂ 2 08:54:06 2009
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Ó÷¨: SQLLDR keyword=value [,keyword=value,...]
ÓÐЧµÄ¹Ø¼ü×Ö:
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   control -- ¿ØÖÆÎļ ......

Oracle SQL Loader

Ò»£ºSQL Loader µÄÌØµã
oracle×Ô¼º´øÁ˺ܶàµÄ¹¤¾ß¿ÉÒÔÓÃÀ´½øÐÐÊý¾ÝµÄÇ¨ÒÆ¡¢±¸·ÝºÍ»Ö¸´µÈ¹¤×÷¡£µ«ÊÇÿ¸ö¹¤¾ß¶¼ÓÐ×Ô¼ºµÄÌØµã¡£
±ÈÈç˵expºÍimp¿ÉÒÔ¶ÔÊý¾Ý¿âÖеÄÊý¾Ý½øÐе¼³öºÍµ¼³öµÄ¹¤×÷£¬ÊÇÒ»ÖֺܺõÄÊý¾Ý¿â±¸·ÝºÍ»Ö¸´µÄ¹¤¾ß£¬Òò´ËÖ÷ÒªÓÃÔÚÊý¾Ý¿âµÄÈȱ¸·ÝºÍ»Ö¸´·½Ãæ¡£ÓÐ×ÅËٶȿ죬ʹÓüòµ¥£¬¿ì½ÝµÄÓŵ㣻ͬʱҲÓÐһЩȱµã£¬±ÈÈçÔÚ²»Í¬°æ±¾Êý¾Ý¿âÖ®¼äµÄµ¼³ö¡¢µ¼ÈëµÄ¹ý³ÌÖ®ÖУ¬×Ü»á³öÏÖÕâÑù»òÕßÄÇÑùµÄÎÊÌ⣬Õâ¸öÒ²ÐíÊÇoracle¹«Ë¾×Ô¼º²úÆ·µÄ¼æÈÝÐÔµÄÎÊÌâ°É¡£
sql loader ¹¤¾ßȴûÓÐÕâ·½ÃæµÄÎÊÌ⣬Ëü¿ÉÒÔ°ÑһЩÒÔÎı¾¸ñʽ´æ·ÅµÄÊý¾Ý˳ÀûµÄµ¼Èëµ½oracleÊý¾Ý¿âÖУ¬ÊÇÒ»ÖÖÔÚ²»Í¬Êý¾Ý¿âÖ®¼ä½øÐÐÊý¾ÝÇ¨ÒÆµÄ·Ç³£·½±ã¶øÇÒͨÓõŤ¾ß¡£È±µã¾ÍËٶȱȽÏÂý£¬ÁíÍâ¶ÔblobµÈÀàÐ͵ÄÊý¾Ý¾ÍÓеãÂé·³ÁË¡£
¶þ. sqlldr °ïÖú£º
C:\Documents and Settings\David>sqlldr
SQL*Loader: Release 10.2.0.1.0 - Production on ÐÇÆÚËÄ 7ÔÂ 2 08:54:06 2009
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Ó÷¨: SQLLDR keyword=value [,keyword=value,...]
ÓÐЧµÄ¹Ø¼ü×Ö:
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   control -- ¿ØÖÆÎļ ......

Oracleά»¤³£ÓÃSQLÓï¾ä

¡¡¡¡1¡¢²é¿´±í¿Õ¼äµÄÃû³Æ¼°´óС
¡¡¡¡select t.tablespace_name, round(sum(bytes/(1024*1024)),0) ts_size
¡¡¡¡from dba_tablespaces t, dba_data_files d
¡¡¡¡where t.tablespace_name = d.tablespace_name
¡¡¡¡group by t.tablespace_name;
¡¡¡¡
¡¡¡¡2¡¢²é¿´±í¿Õ¼äÎïÀíÎļþµÄÃû³Æ¼°´óС
¡¡¡¡select tablespace_name, file_id, file_name,
¡¡¡¡round(bytes/(1024*1024),0) total_space
¡¡¡¡from dba_data_files
¡¡¡¡order by tablespace_name;
¡¡¡¡
¡¡¡¡3¡¢²é¿´»Ø¹ö¶ÎÃû³Æ¼°´óС
¡¡¡¡select segment_name, tablespace_name, r.status,
¡¡¡¡(initial_extent/1024) InitialExtent,(next_extent/1024) NextExtent,
¡¡¡¡max_extents, v.curext CurExtent
¡¡¡¡from dba_rollback_segs r, v$rollstat v
¡¡¡¡Where r.segment_id = v.usn(+)
¡¡¡¡order by segment_name ;
¡¡¡¡
¡¡¡¡4¡¢²é¿´¿ØÖÆÎļþ
¡¡¡¡select name from v$controlfile;
¡¡¡¡
¡¡¡¡5¡¢²é¿´ÈÕÖ¾Îļþ
¡¡¡¡select member from v$logfile;
¡¡¡¡
¡¡¡¡6¡¢²é¿´±í¿Õ¼äµÄʹÓÃÇé¿ö
¡¡¡¡select sum(bytes)/(1024*1024) as free_space,tablespace_name
¡¡¡¡from dba_free ......

Oracleά»¤³£ÓÃSQLÓï¾ä

¡¡¡¡1¡¢²é¿´±í¿Õ¼äµÄÃû³Æ¼°´óС
¡¡¡¡select t.tablespace_name, round(sum(bytes/(1024*1024)),0) ts_size
¡¡¡¡from dba_tablespaces t, dba_data_files d
¡¡¡¡where t.tablespace_name = d.tablespace_name
¡¡¡¡group by t.tablespace_name;
¡¡¡¡
¡¡¡¡2¡¢²é¿´±í¿Õ¼äÎïÀíÎļþµÄÃû³Æ¼°´óС
¡¡¡¡select tablespace_name, file_id, file_name,
¡¡¡¡round(bytes/(1024*1024),0) total_space
¡¡¡¡from dba_data_files
¡¡¡¡order by tablespace_name;
¡¡¡¡
¡¡¡¡3¡¢²é¿´»Ø¹ö¶ÎÃû³Æ¼°´óС
¡¡¡¡select segment_name, tablespace_name, r.status,
¡¡¡¡(initial_extent/1024) InitialExtent,(next_extent/1024) NextExtent,
¡¡¡¡max_extents, v.curext CurExtent
¡¡¡¡from dba_rollback_segs r, v$rollstat v
¡¡¡¡Where r.segment_id = v.usn(+)
¡¡¡¡order by segment_name ;
¡¡¡¡
¡¡¡¡4¡¢²é¿´¿ØÖÆÎļþ
¡¡¡¡select name from v$controlfile;
¡¡¡¡
¡¡¡¡5¡¢²é¿´ÈÕÖ¾Îļþ
¡¡¡¡select member from v$logfile;
¡¡¡¡
¡¡¡¡6¡¢²é¿´±í¿Õ¼äµÄʹÓÃÇé¿ö
¡¡¡¡select sum(bytes)/(1024*1024) as free_space,tablespace_name
¡¡¡¡from dba_free ......

Oracle ¼ì²éÃüÖÐÂʵÄSQL

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1.  »º³åÇøÃüÖÐÂÊ:
»º³åÇøÃüÖÐÂʱíʾÔÚ²»ÐèÒª½øÐдÅÅÌ·ÃÎʵÄÇé¿öÏÂÔÚÄÚ´æ½á¹¹ÖÐÕÒµ½³£ÓÃÊý¾Ý¿éµÄƵÂÊ
select (1-(sum(decode(name, 'physical reads',value,0))/(sum(decode(name, 'db block gets',value,0))
         +sum(decode(name,'consistent gets',value,0))))) * 100 "Hit Ratio"
         from v$sysstat;
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2.Êý¾Ý×ֵ仺´æÃüÖÐÂÊ£º
Êý¾Ý×ֵ仺´æÃüÖÐÂÊÏÔʾÁ˶ÔÊý¾Ý×ÖµäºÍÆäËû¶ÔÏóµÄÄÚ´æ¶Á²Ù×÷ËùÕ¼µÄ°Ù·Ö±È¡£
select (1-(sum(getmisses)/sum(gets))) * 100 "Hit Ratio" from v$rowcache;
´óÓÚ98%Ϊ×î¼Ñ
3.¿â»º´æÃüÖÐÂÊ£º
¿â»º´æÃüÖÐÂÊÏÔʾÁ˶Ôʵ¼ÊÓï¾äºÍPL/SQL¶ÔÏóµÄÄÚ´æ¶Á²Ù×÷ËùÕ¼µÄ°Ù·Ö±È¡£×¢Ò⣬ºÜ¸ßµÄÃüÖÐÂʲ¢²»×ÜÊÇÒ»¼þºÃÊ¡£
select Sum(Pins)/(Sum(Pins) + Sum(Reloads)) * 100 "Hit Ratio" from V$LibraryCache;
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4.PGAÄÚ´æÅÅÐòÃüÖÐÂÊ
×Ô¶¯PGAÄÚ´æ¹ÜÀí¼ò»¯ÁË·ÖÅäPGAÄÚ´æµÄ·½·¨¡£Oracle¶¯Ì¬µ÷Õû¹¤×÷ÇøPGAÄÚ´æµÄ´óС(ÒÔSGAÄÚ´æ´óСµÄ20%Ϊ»ù´¡)¡£ÔÚ×Ô¶¯PGAÄÚ´æ¹ÜÀ ......
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