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		<title>tentang abip</title>
		<link>http://abip0rcl.wordpress.com/2009/02/07/tentang-abip/</link>
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		<pubDate>Sat, 07 Feb 2009 03:03:09 +0000</pubDate>
		<dc:creator>abip0rcl</dc:creator>
				<category><![CDATA[all about Me]]></category>

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		<description><![CDATA[nama lengkap : habiburrokhman panggilan : abip ttgl : palembang, 17 oktober 1984 tk : pusri, palembang sd : sd 1 ysp pusri,palembang smp : smp ysp pusri, palembang sma : sma xaverius 1, palembang kuliah : st. inten bandung, tek. informatika kerja : - pt. firstwap : as kacung - sisindokom lintasbuana : oracle [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=abip0rcl.wordpress.com&amp;blog=1313524&amp;post=40&amp;subd=abip0rcl&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>nama lengkap : habiburrokhman</p>
<p>panggilan : abip</p>
<p>ttgl : palembang, 17 oktober 1984</p>
<p>tk : pusri, palembang</p>
<p>sd : sd 1 ysp pusri,palembang</p>
<p>smp : smp ysp pusri, palembang</p>
<p>sma : sma xaverius 1, palembang</p>
<p>kuliah : st. inten bandung, tek. informatika</p>
<p>kerja :</p>
<p>- pt. firstwap : as kacung</p>
<p>- sisindokom lintasbuana : oracle sw specialist</p>
<p>- mitra integrasi informatika : oracle technical consultant</p>
<p>- next&#8230;hmmm</p>
<p>friendster : 1rstDev@gmail.com (jarang di buka)</p>
<p>facebook : dev_orcl@yahoo.co.id</p>
<p>community : indo-oracle, tsvc</p>
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			<media:title type="html">abip_oracle</media:title>
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	</item>
		<item>
		<title>alat kerja</title>
		<link>http://abip0rcl.wordpress.com/2009/02/07/alat-kerja/</link>
		<comments>http://abip0rcl.wordpress.com/2009/02/07/alat-kerja/#comments</comments>
		<pubDate>Sat, 07 Feb 2009 02:57:19 +0000</pubDate>
		<dc:creator>abip0rcl</dc:creator>
				<category><![CDATA[all about Me]]></category>

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		<description><![CDATA[yg berhubungan dengan kerjaan : 1. dell xps m1330, 4 GB Mem 2. SecureCRT (SSH Connection to Remote Server) 3. TOAD for Oracle 9.6 (Support Oracle Database 11g) 4. File Zilla (Upload, Download Files from and to Remote Server) 5. Notepad++, text Editor 6. Mozilla Firefox (Googling, Connect to Remote Server via OEM or OAS [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=abip0rcl.wordpress.com&amp;blog=1313524&amp;post=37&amp;subd=abip0rcl&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>yg berhubungan dengan kerjaan :</p>
<p>1. dell xps m1330, 4 GB Mem</p>
<p>2. SecureCRT (SSH Connection to Remote Server)</p>
<p>3. TOAD for Oracle 9.6 (Support Oracle Database 11g)</p>
<p>4. File Zilla (Upload, Download Files from and to Remote Server)</p>
<p>5. Notepad++, text Editor</p>
<p>6. Mozilla Firefox (Googling, Connect to Remote Server via OEM or OAS FARM)</p>
<p>7. FoxitReader, PDF Viewer</p>
<p>8. Ms. Vista Business, for OS, lemoti, pemakan memori</p>
<p>9. Cisco System VPN Client, buat remote dr kosan, hha Males Ke Kantor banget + IM2 Broom Unlimited, Versi Murah Aja !!</p>
<p>10. Metalink, buat troubleshoot masalah2 yg di Hidden cara penyelesaiannya oleh Oracle, wanna some account&#8230; i have xl, indosat, and btel account, hha ! ga boleh ah, internal purpose onleeeeee !!</p>
<p>11. VMWare, Testing2&#8230;</p>
<p>12. XManager Enterprise, XBrowser buat remote via GUI, XManager passive buat nampilin GUI di Vista meski jalanin command nya lewat SecureCRT. export DISPLAY:&#8221;YOUR_IP&#8221;:0.0</p>
<p>13. YM : komunikasi dengan User</p>
<p>14. WMP, biar ga bete pas kerja</p>
<p>15. Western Digital 320GB, ext. disk. buat nyimpen sw2 oracle yg gedenya kayak gajah gendut.</p>
<p>16. Hape Nokia, pake ESIA + SIMPATI, abip ga mau make yg dari indosat, ga tau kenapa, hha !!</p>
<p>17. Hape Nokia sebagai modem, klo lagi di kosan buat chatting, browsing, bukan buat nge-remote gawe, hhe..</p>
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			<media:title type="html">abip_oracle</media:title>
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		<item>
		<title>Introduction</title>
		<link>http://abip0rcl.wordpress.com/2009/02/07/introduction/</link>
		<comments>http://abip0rcl.wordpress.com/2009/02/07/introduction/#comments</comments>
		<pubDate>Sat, 07 Feb 2009 01:54:42 +0000</pubDate>
		<dc:creator>abip0rcl</dc:creator>
				<category><![CDATA[Oracle Database 10g R2 Admin Workshop I]]></category>

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		<description><![CDATA[Tujuan dari Admin Workshop 1 agar kita mampu untuk : - install, membuat, dan mengatur Oracle Database 10g - configurasi oracle db guna keperluan aplikasi : membuat user, struktur storage, security - menerapkan prosedur dasar monitoring : agar database dpt berjalan dengan lancar. - menerapkan strategi backup dan recovery : High Availability - memindahkan data [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=abip0rcl.wordpress.com&amp;blog=1313524&amp;post=30&amp;subd=abip0rcl&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Tujuan dari Admin Workshop 1 agar kita mampu untuk :</p>
<p>- install, membuat, dan mengatur Oracle Database 10g</p>
<p>- configurasi oracle db guna keperluan aplikasi : membuat user, struktur storage, security</p>
<p>- menerapkan prosedur dasar monitoring : agar database dpt berjalan dengan lancar.</p>
<p>- menerapkan strategi backup dan recovery : High Availability</p>
<p>- memindahkan data antar database</p>
<p>Bab yang Akan Di Bahas, Antara Lain :</p>
<p>1. Introduction</p>
<p>2. Installation</p>
<p>3. DB Creation</p>
<p>4. Instance</p>
<p>5. Storage</p>
<p>6. Users</p>
<p>7. Schema</p>
<p>8. Data &amp; Concurrency</p>
<p>9. Undo</p>
<p>10. Security</p>
<p>11. Network</p>
<p>12. Proactive Maintenance</p>
<p>13. Performance</p>
<p>14. Backup and Recovery Concepts</p>
<p>15. Backup</p>
<p>16. Recovery</p>
<p>17. Flashback</p>
<p>18. Moving Data</p>
<p>Cukup Banyak, Tapi kita akan Pelan2 kok&#8230;</p>
<p>Oracle Database 10g, &#8220;g&#8221; berarti  Grid, standar untuk Grid Computing.</p>
<p>Please visit http://www.gridforum.org for the details</p>
<p>Grid computing Oracle bermaksud untuk mensejajarkan dengan high reliability mainframe computing.</p>
<p>Tidak seperti mainframe dan UNIX SMP, Grid Oracle dapat dibuat dengan teknologi terbuka, seperti Intel Processor dan Linux Operating System (I suggest you to use Oracle Unbreakable Linux in this course Environment), sehingga meminimalisir cost.</p>
<p>Teknologi Oracle Grid Computing</p>
<p>1. Storage Grid : ASM (Automatic Storage Management)</p>
<p>2. Database Grid : RAC (Real Application Server)</p>
<p>3. Application Grid : Oracle Streams</p>
<p>all of these can be monitored via Oracle Enterprise Manager Grid Control</p>
<p>nb : yg atas ga perlu di pikirin dulu, di luar scope bahasan kali ini (kecuali ASM)</p>
<p>Oracle Database Arsitektur, minimal terdiri dari 1 instance dan 1 database.</p>
<p>Struktur Database :</p>
<p>1. Memori : SGA</p>
<p>2. Proses : Background Processes</p>
<p>3. Storage : Database Files</p>
<p>1 Oracle Database = 1 Instances (kecuali RAC, 1 database : 2 atau lebih Instances)<br />
Setiap Oracle Database STARTED, oracle software mengalokasikan shared memory area, SGA.<br />
dan juga menjalankan beberapa background process.<br />
SGA + BGPROCESSES = Instances</p>
<p>Struktur Memori Oracle :<br />
1. SGA : System Global Area : di shared oleh semua server proses dan background proses<br />
2. PGA : Private Global Area : 1 PGA : 1 Proses<br />
setiap ada request dr client, oracle membuatkan 1 server proses untuk melayaninya</p>
<p>Struktur SGA :<br />
1. Database Buffer Cache : Menyimpan sementara blok2 yang yang diambil dari database (dr datafile sih sebenernya :p)<br />
2. Redo Log Buffer : Menyimpan sementara informasi Redo sebelum di simpan ke redo log files (untuk instance recovery)<br />
3. Shared Pool : Kurang lebih sebagai buffer SQL statement yg dpt di shared antar user<br />
4. Large Pool : digunakan untuk proses yg besar, mis : backup and recovery proses, I/O Server Processes, ext.<br />
5. Streams Pool : Digunakan oleh Oracle Stream<br />
6. Java Pool : Java Purpose</p>
<p>nb :</p>
<p>Oracle Database 10G memiliki parameter SGA_TARGET, sehingga Oracle Dapat mengatur secara otomatis pengalokasian SGA sesuai kebutuhan.<br />
Oracle Database 11G fitur MEMORY_TARGET, sehingga Oracle dapat mengatur pengalokasian SGA + PGA Secara Otomatis sesuai kebutuhan database.</p>
<p>Struktur Proses Oracle :<br />
1. user proses<br />
Proses pada saat user request connection ke oracle server<br />
2. server proses<br />
execute command is issued by user proses<br />
3. background proses<br />
Proses yang berjalan pada saat Oracle STARTED</p>
<p>Oracle Instance Management<br />
Oracle background proses yg umum :<br />
1. System Monitor (SMON) : Perform crash recovery apabila database started setelah terjadi failure<br />
2. Process Monitor (PMON) : membersihkan proses pada saat terjadi user failure<br />
3. Database Writer (DBWR) : menulis blok2 data yg sudah di ubah dari db buffer cache ke datafiles<br />
4. LogWriter (LGWR) : menulis isi redo log dari logbuffer ke disk<br />
5. Archiver (ARCn) : copy redo log files ke archival storage ketika terjadi log switch (archivelog mode)<br />
6. Checkpoint (CKPT) : update controlfile dan data file header ketika terjadi checkpoint</p>
<p>Server Process dan Database buffer cache<br />
ketika query di proses, oracle server proses melihat terlebih dahulu ke<br />
database buffer cache blocks yang dibutuhkan (yg akan di modifikasi). Jika tidak ada maka<br />
oracle server process melakukan pembacaan block ke disk dan menempatkan kopian dr block tersebut ke database buffer cache.<br />
proses membaca ke disk meningkatkan Physical Reads.<br />
Diharapkan setingan Oracle Buffer Cache cukup untuk menampung blok2 data yg dibutuhkan sehingga performance tidak turun.</p>
<p>Status Buffer di Buffer Cache :<br />
1. Pinned : Session yg ada tidak diperkenankan untuk mengubah blok data yg sedang digunakan oleh session lain. Session lain menunggu giliran<br />
2. Clean : Buffer sekarang tidak di pinned, dan buffer tersebut sbagai kandidat untuk di tulis ke disk<br />
isi dari block data di buffer dan disk consistent<br />
3. Free or Unused : Buffer belum dipakai (Pada saat instance baru STARTED)<br />
4. Dirty : status buffer tidak lagi di pinned tetapi isi dari block data yg di buffer telah berubah,<br />
dan harus di flush ke disk oleh DBWR sebelum di aged-out</p>
<p>Physical Database Storage<br />
1. Control files : menyimpan informasi mengenai database itu sendiri, critical tanpa file ini, anda tidak dapat membuka database<br />
(Sebelum Database dalam kondisi MOUNT, oracle membaca controlfile terlebih dahulu)<br />
2. Data files : menyimpan user / aplikasi data<br />
3. Online Redo Log Files : Berguna untuk Instance Recovery<br />
4. Parameter Files : Configurasi Instance pada saat startup<br />
5. Password Files : Memungkinkan user konek ke database dan melakukan administrative tasks<br />
6. Archived Log Files : dengan backup files, data file dapat di recover ,hingga commit terakhir<br />
7. Trace Files : berisi error dr server / background process file.<br />
8. Alert Log Files : berisi kronologis database, messages ataupun error.<br />
9. backup Files : digunakan untuk database Recovery</p>
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			<media:title type="html">abip_oracle</media:title>
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	</item>
		<item>
		<title>Invalid Objects, Database Performance</title>
		<link>http://abip0rcl.wordpress.com/2007/07/04/invalid-objects-database-performance/</link>
		<comments>http://abip0rcl.wordpress.com/2007/07/04/invalid-objects-database-performance/#comments</comments>
		<pubDate>Wed, 04 Jul 2007 03:54:01 +0000</pubDate>
		<dc:creator>abip0rcl</dc:creator>
				<category><![CDATA[performance&tuning]]></category>

		<guid isPermaLink="false">http://abip0rcl.wordpress.com/2007/07/04/invalid-objects-database-performance/</guid>
		<description><![CDATA[MANAGING DATABASE PERFORMANCE : Pada saat ini kita akan membahas mengenai Database Performance Tingkat Dasar Hal2 Yang Akan Dibahas Antara Lain Mengenai : 1. Troubleshoot Invalid and Unusable Objects 2. Gather Optimizer Statistics 3. View Performance Metrics, dan 4. React To Performance Issues ISSUES : 1. Memory Allocation Issue 2. Network Bottleneck 3. Application Code [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=abip0rcl.wordpress.com&amp;blog=1313524&amp;post=18&amp;subd=abip0rcl&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>MANAGING DATABASE PERFORMANCE :<br />
Pada saat ini kita akan membahas mengenai Database Performance Tingkat Dasar</p>
<p>Hal2 Yang Akan Dibahas Antara Lain Mengenai :<br />
1. Troubleshoot Invalid and Unusable Objects<br />
2. Gather Optimizer Statistics<br />
3. View Performance Metrics, dan<br />
4. React To Performance Issues</p>
<p>ISSUES :<br />
1. Memory Allocation Issue<br />
2. Network Bottleneck<br />
3. Application Code Problems<br />
4. I/O Device Contention<br />
5. Resource Contention</p>
<p>Performance Monitoring, terbagi atas dua tipe :<br />
1. Reactive Monitoring :<br />
Response yang kita sebagai DBA lakukan terhadap issue2 yang dilaporkan oleh user,<br />
misalnya : response time, instance failures, errors found in alert log<br />
2. Proactive Monitoring :<br />
Mengidentifikasi hal2 yang dapat menyebabkan masalah, sebelum secara luas menimbulkan dampak terhadap performa database</p>
<p>Pada Saat Ini Kita Hanya Akan Membahas Mengenai REACTIVE MONITORING<br />
Penurunan Performa Dapat Terjadi Dikarenakan :<br />
1. Object2 INVALID<br />
objek : INDEX, PROCEDURES, TRIGGERS, PACKAGES, OBJECT TYPES</p>
<p>Penyebab object menjadi INVALID :<br />
1. procedures mengacu ke kolom pada suatu tabel, dan pada suatu waktu kolom tersebut di drop, maka Procedures tersebut perlu di compile<br />
2. Procedures memiliki syntax yang salah</p>
<p>Biasanya Oracle akan secara otomatis mengcompile ulang PL/SQL yang invalid, apabila tidak berhasil maka DBA perlu untuk mengcompile procedures secara manual</p>
<p>Mengidentifikasi object yang INVALID, query dba_objects atau all_objects atau user_objects view<br />
SQL&gt; select owner, object_name, object_type from dba_objects<br />
where status =&#8217;INVALID&#8217;;</p>
<p>untuk memperbaiki invalid procedures, gunakan perintah SQL&gt;alter procedures owner.procedures_name COMPILE<br />
untuk memperbaiki invalid views, gunakan perintah SQL&gt;alter view owner.view_name COMPILE</p>
<p>jika terjadi ERROR, check dependencies object tersebut dari dba_dependencies, user_dependencies, all_dependencies<br />
jika terdapat banyak object yang harus di compile gunakan fitur yang disediakan oleh oracle,, yaitu<br />
conditions : letak oracle database software berada di drive D:<br />
actions :<br />
SQL&gt; @D:\oracle\product\10.2.0\db_1\rdbms\admin\ultrp</p>
<p>SIMULASI :<br />
1. connect as system<br />
2. SQL&gt; create user abip_invalid identified by abip_invalid<br />
Notes : untuk belajar, dianjurkan untuk memberi password yang sama dengan user name agar tidak lupa<br />
3. SQL&gt; grant dba to abip_invalid<br />
4. connect as abip_invalid<br />
5. SQL&gt; create table tab_invalid(num number, dt date);<br />
6. SQL&gt; insert into tab_invalid values(1,sysdate);<br />
7. buat view untuk tab_invalid<br />
SQL&gt; create or replace view view_invalid as select dt from tab_invalid;<br />
8. buat procedures untuk tab_invalid<br />
SQL&gt; create or replace procedure proc_invalid as<br />
count_number number;<br />
begin<br />
select count(*) into count_number from tab_invalid;<br />
end;<br />
/<br />
9. SQL&gt; select object_name, object_type, status from user_objects;</p>
<p>OBJECT_NAME        OBJECT_TYPE     STATUS<br />
&#8212;&#8212;&#8212;&#8212;&#8211;|&#8212;&#8212;&#8212;&#8212;&#8211;|&#8212;&#8212;&#8212;-<br />
TAB_INVALID           TABLE         VALID</p>
<p>VIEW_INVALID       VIEW          VALID</p>
<p>PROC_INVALID     PROCEDURE       VALID</p>
<p>10. Lakukan simulasi pengInvalidan Object<br />
SQL&gt; alter table tab_invalid drop column dt;<br />
11. Lakukan Langkah ke 9, dengan hasil yang jelas berbeda<br />
OBJECT_NAME        OBJECT_TYPE     STATUS<br />
&#8212;&#8212;&#8212;&#8212;&#8211;|&#8212;&#8212;&#8212;&#8212;&#8211;|&#8212;&#8212;&#8212;-<br />
TAB_INVALID           TABLE         VALID</p>
<p>VIEW_INVALID       VIEW         INVALID</p>
<p>PROC_INVALID     PROCEDURE      INVALID</p>
<p>12. Untuk procedures lakukan Compile<br />
SQL&gt; alter procedure proc_invalid COMPILE;<br />
procedures PROC_INVALID telah VALID !<br />
OBJECT_NAME        OBJECT_TYPE     STATUS<br />
&#8212;&#8212;&#8212;&#8212;&#8211;|&#8212;&#8212;&#8212;&#8212;&#8211;|&#8212;&#8212;&#8212;-<br />
TAB_INVALID           TABLE         VALID</p>
<p>VIEW_INVALID       VIEW         INVALID</p>
<p>PROC_INVALID     PROCEDURE       VALID</p>
<p>13. Compile View<br />
SQL&gt; compile view view_invalid compile;<br />
ups, whadda hell !!!<br />
Warning: View altered with compilation errors.<br />
Recompile view akan gagal, karena View Mengacu pada kolom yang telah di drop</p>
<p>Check Apa Yang Terdapat Pada View view_invalid pada user_views atau dba_views, all_views<br />
SQL&gt; select view_name, text from user_views where view_name like &#8216;VIEW%&#8217;;<br />
VIEW_NAME        TEXT<br />
&#8212;&#8212;&#8212;&#8212;-|&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
VIEW_INVALID    select dt from tabel_invalid<br />
untuk mengetahui secara pasti, query user_dependencies;</p>
<p>SQL&gt; select referenced_name from user_dependencies where lower(name) like &#8216;view%&#8217;;<br />
REFERENCED_NAME        REFERENCED_TYPE<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;|&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
TAB_INVALID          TABLE<br />
DT                     NON-EXISTENT<br />
DT                     NON-EXISTENT<br />
Kita mendapati bahwa kolom dt sudah tidak exist<br />
14. Putuskan, untuk drop view atau buat kolom dengan kolom yang sama<br />
SQL&gt; alter table tab_invalid add (d1 date);<br />
15. Compile ulang,<br />
SQL&gt; alter view view_invalid compile;<br />
view akan menjadi valid, dan procedures menjadi tidak valid, compile ulang procedure proc_invalid</p>
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		<title>flashback transaction query</title>
		<link>http://abip0rcl.wordpress.com/2007/07/04/flashback-transaction-query/</link>
		<comments>http://abip0rcl.wordpress.com/2007/07/04/flashback-transaction-query/#comments</comments>
		<pubDate>Wed, 04 Jul 2007 03:51:54 +0000</pubDate>
		<dc:creator>abip0rcl</dc:creator>
				<category><![CDATA[flash IT back !!!]]></category>

		<guid isPermaLink="false">http://abip0rcl.wordpress.com/2007/07/04/flashback-transaction-query/</guid>
		<description><![CDATA[FLASHBACK TRANSACTION QUERY -&#62; melihat semua perubahan yang dilakukan sebuah transaksu Pada flashback versions query, 3 kali transaksi dilakukan dalam satu kali commit, maka kita tidak dapat hanya memFlashback data pada kolom yang di Update saja atau di delete saja atau di insert saja, dengan flashback transaction query anda dapat melakukan hal tersebut SIMULASI SQL&#62; [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=abip0rcl.wordpress.com&amp;blog=1313524&amp;post=17&amp;subd=abip0rcl&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>FLASHBACK TRANSACTION QUERY<br />
-&gt; melihat semua perubahan yang dilakukan sebuah transaksu</p>
<p>Pada flashback versions query, 3 kali transaksi dilakukan dalam satu kali commit, maka kita tidak dapat hanya memFlashback data pada kolom yang di Update saja<br />
atau di delete saja atau di insert saja,</p>
<p>dengan flashback transaction query anda dapat melakukan hal tersebut</p>
<p>SIMULASI<br />
SQL&gt; select empno, ename, sal from emp<br />
where deptno = 10;<br />
EMPNO ENAME  SAL<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
7782  CLARK  2450<br />
7839  KING   5000<br />
7934  MILLER 1300</p>
<p>SQL&gt; insert into emp (empno,ename,sal,deptno)<br />
values (8000,&#8217;HARRY&#8217;,2500,10);<br />
1 row updated<br />
SQL&gt; commit;<br />
commit complete</p>
<p>SQL&gt; update emp set sal=3000 where empno=7839;<br />
1 row updated<br />
SQL&gt; commit;<br />
commit complete</p>
<p>SQL&gt; delete emp where empno=7782; (clark deleted)<br />
1 row deleted<br />
SQL&gt; commit;<br />
commit complete</p>
<p>ACTIONS :<br />
1. em, tables<br />
2. Masukkan schema name, dan nama tabel<br />
3. pilih actions &#8220;FLASHBACK version query&#8221;, klik GO<br />
4. pilih kolom yang diinginkan, dan pilih untuk memfilter (dalam kasus ini gunakan &#8220;where deptno=10&#8243;), masukkan interval time atau scn, ataupun tidak, klik next<br />
5. ditampilkan kolom2 sesuai dengan pilihan, ditambah kolom SCN,transaction ID,SCN sama berarti dilakukan dalam satu commit<br />
6. klik transaction id<br />
7. pada contoh kasus ini, kita akan meng-undo proses delete clark<br />
sorot sql pada kolom &#8220;undo sql&#8221;<br />
SQL&gt; insert into &#8220;SCOTT&#8221;.&#8221;EMP2&#8243;(&#8220;EMPNO&#8221;,&#8221;ENAME&#8221;,&#8221;JOB&#8221;,&#8221;MGR&#8221;,&#8221;HIREDATE&#8221;,&#8221;SAL&#8221;,&#8221;COMM&#8221;,&#8221;DEPTNO&#8221;)<br />
values (&#8217;7782&#8242;,&#8217;CLARK&#8217;,'MANAGER&#8217;,&#8217;7839&#8242;,TO_DATE(&#8217;09-06-1981&#8242;, &#8216;DD-MM-RRRR&#8217;),&#8217;2450&#8242;,NULL,&#8217;10&#8242;);<br />
1 row created</p>
<p>Semudah itu kan, ayo dong temen2 kita belajar oracle bareng&#8230;..<br />
kita bisa sharing2, inget KITA GA SENDIRI BANYAK ORANG BAIK YANG AKAN MENOLONG KITA APABILA KITA MEMILIKI MASALAH DENGAN ADMINISTRASI DATABASE ORACLE</p>
<p>MAJU TERUS ORACLE LOVERS !!!</p>
<p><strong>regards</strong><br />
<strong>abip</strong></p>
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		<title>flashback table</title>
		<link>http://abip0rcl.wordpress.com/2007/07/04/flashback-table/</link>
		<comments>http://abip0rcl.wordpress.com/2007/07/04/flashback-table/#comments</comments>
		<pubDate>Wed, 04 Jul 2007 03:45:27 +0000</pubDate>
		<dc:creator>abip0rcl</dc:creator>
				<category><![CDATA[flash IT back !!!]]></category>

		<guid isPermaLink="false">http://abip0rcl.wordpress.com/2007/07/04/flashback-table/</guid>
		<description><![CDATA[FLASHBACK TABLE : conditions : user menDelete table simualation : SQL&#62; connect scott/password_scott connected. SQL&#62;delete emp; 15 rows deleted. SQL&#62;commit; commit complete. cara2 : 1. SQL&#62; flashback table emp to scn ? untuk mengetahui scn berapa, lakukan hal di bawah ini SQL&#62;select versions_startscn-1 as flashback_scn, versions_operation as ops, empno,ename,sal from emp versions between scn minvalue [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=abip0rcl.wordpress.com&amp;blog=1313524&amp;post=16&amp;subd=abip0rcl&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>FLASHBACK TABLE :<br />
conditions : user menDelete table<br />
simualation :<br />
SQL&gt; connect scott/password_scott<br />
connected.</p>
<p>SQL&gt;delete emp;<br />
15 rows deleted.</p>
<p>SQL&gt;commit;<br />
commit complete.</p>
<p>cara2 :<br />
1. SQL&gt; flashback table emp to scn ?</p>
<p>untuk mengetahui scn berapa, lakukan hal di bawah ini<br />
SQL&gt;select versions_startscn-1 as flashback_scn,<br />
versions_operation as ops,<br />
empno,ename,sal<br />
from emp versions between scn minvalue and maxvalue<br />
where 1=1<br />
and versions_start_scn is not null<br />
order by versions_start_scn desc;</p>
<p>STARTSCN OPS   EMPNO ENAME             SAL<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br />
751564        D       8000       HARRY            2500<br />
751564        D       7902       FORD                3000<br />
751564        D       7900       JAMES              950<br />
751564        D       7876       ADAMS            1100<br />
751564        D       7844      TURNER           1500<br />
751564        D       7839      KING                  3000<br />
751564        D       7369      SMITH                800<br />
751564        D       7782      CLARK              2450<br />
751564        D       7698      BLAKE              2850<br />
751564        D       7654      MARTIN           1250<br />
751564        D       7566      JONES               2975</p>
<p>STARTSCN OPS   EMPNO ENAME             SAL<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br />
751564        D       7521        WARD             1250<br />
751564        D       7499        ALLEN            1600<br />
751564        D       7788        SCOTT            3000</p>
<p>notes : versions_startscn-1 = untuk melihat scn pada saat sebelum melakukan delete pada table emp</p>
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		<title>flashback version query</title>
		<link>http://abip0rcl.wordpress.com/2007/07/04/flashback-version-query/</link>
		<comments>http://abip0rcl.wordpress.com/2007/07/04/flashback-version-query/#comments</comments>
		<pubDate>Wed, 04 Jul 2007 03:41:35 +0000</pubDate>
		<dc:creator>abip0rcl</dc:creator>
				<category><![CDATA[flash IT back !!!]]></category>

		<guid isPermaLink="false">http://abip0rcl.wordpress.com/2007/07/04/flashback-version-query/</guid>
		<description><![CDATA[FLASHBACK VERSION QUERY -&#62; digunakan untul melihat seluruh transaksi yang telah terjadi pada sebuah tabel Simulasi : schema : scott tabel : emp SQL&#62; select empno, ename, sal from emp where deptno = 10; EMPNO ENAME SAL &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;- 7782 CLARK 2450 7839 KING 5000 7934 MILLER 1300 SQL&#62; insert into emp (empno,ename,sal,deptno) values (8000,&#8217;HARRY&#8217;,2500,10); 1 [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=abip0rcl.wordpress.com&amp;blog=1313524&amp;post=15&amp;subd=abip0rcl&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>FLASHBACK VERSION QUERY<br />
-&gt; digunakan untul melihat seluruh transaksi yang telah terjadi pada sebuah tabel</p>
<p>Simulasi :<br />
schema : scott<br />
tabel  : emp</p>
<p>SQL&gt; select empno, ename, sal from emp<br />
where deptno = 10;<br />
EMPNO ENAME  SAL<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
7782       CLARK  2450<br />
7839       KING      5000<br />
7934       MILLER 1300<br />
SQL&gt; insert into emp (empno,ename,sal,deptno)<br />
values (8000,&#8217;HARRY&#8217;,2500,10);<br />
1 row updated</p>
<p>SQL&gt; update emp set sal=3000 where empno=7839;<br />
1 row updated</p>
<p>SQL&gt; delete emp where empno=7934;<br />
1 row deleted</p>
<p>SQL&gt; select empno, ename, sal from emp<br />
where deptno=10;</p>
<p>SQL&gt; commit;<br />
commit complete</p>
<p>query<br />
SQL&gt; select versions_startscn startscn,<br />
versions_endscn endscn,<br />
versions_starttime starttime,<br />
versions_endtime endtime,<br />
versions_xid xid,<br />
versions_operation ops,<br />
empno,ename,sal,deptno<br />
from emp versions between scn minvalue and maxvalue<br />
where deptno=10;</p>
<p>startscn endscn   starttime   endtime                xid                              ops empno   ename     sal      deptno<br />
738694               03-JUL-07 09.05.56 PM      0600080065010000   D    7782     CLARK  2450  10<br />
738694               03-JUL-07 09.05.56 PM      0600080065010000   U    8000     HARRY 3500   10<br />
******738694                   03-JUL-07 09.05.56 PM                                7782     CLARK  2450  10<br />
******7839     KING      3000   10<br />
******738694                   03-JUL-07 09.05.56 PM                                8000     HARRY  2500   10<br />
738694               03-JUL-07 09.05.56 PM       0600080065010000   I     1000     ABIP      2000    10</p>
<p>versions_startscn     : scn versions dibuat<br />
versions_endscn        : scn versions expired<br />
versions_starttime    : timestamp versions dibuat<br />
versions_endtime    : timestamp versions is expired<br />
versions_xid        : transaction identifier yang membuat version row<br />
versions_operation    : operation yang dilakukan (U=update, D=delete, I=insert)<br />
dapat dilihat bahwa versions_startscn = 738694, berarti 3 operasi dilakukan dalam 1 commit<br />
pada versions_operation bernilai NULL, berarti pada baris tidak dilakukan proses apa2<br />
URUTAN DARI BAWAH KE ATAS<br />
- dilakukan proses insert dengan ename ABIP<br />
- 3 baris merupakan operasi select<br />
- dilakukan proses update pada ename HARRY, dimana salary di ubah dari 2500<br />
- dilakukan proses delete pada ename CLARK</p>
<p>melakukan operasi Flashback Version Query<br />
1. em, tables<br />
2. masukkan schema, dan nama table<br />
3. pilih actions &#8220;Flashback Version Query&#8221;, klik GO<br />
4. pilih kolom yang akan ditampilkan<br />
5. masukkan where clause, pada simulasi ini kita memasukkan &#8220;where deptno=10&#8243; atau &#8220;where 1=1, yang berarti tidak memfilter data&#8221;<br />
6. pilih interval waktu atau semuanya atau SCN<br />
7. ditampilkan kolom2 sesuai dengan pilihan, ditambah kolom SCN,transaction ID,SCN sama berarti dilakukan dalam satu commit<br />
8. untuk melakukan flashback,lakukan enable row movement pada table tersebut<br />
SQL&gt; alter table emp enable row movement;<br />
9. klik next, pilih cascade<br />
10. pilih row changes untuk melihat perubahan yang akan terjadi jika melakukan flashback version query, review dan submit</p>
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			<media:title type="html">abip_oracle</media:title>
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		<title>dah mo balik kantor</title>
		<link>http://abip0rcl.wordpress.com/2007/07/03/dah-mo-balik-kantor/</link>
		<comments>http://abip0rcl.wordpress.com/2007/07/03/dah-mo-balik-kantor/#comments</comments>
		<pubDate>Tue, 03 Jul 2007 10:13:35 +0000</pubDate>
		<dc:creator>abip0rcl</dc:creator>
				<category><![CDATA[hari2 gw]]></category>

		<guid isPermaLink="false">http://abip0rcl.wordpress.com/2007/07/03/dah-mo-balik-kantor/</guid>
		<description><![CDATA[alter session set nls_date_format = &#8216;dd-mm-yy hh24:mi:ss&#8217;; session altered select sysdate from dual; 03-07-07 17:16:45 hari ini kayanya udahan dulu, doain abip tetep masuk kantor besok ya, biar bisa nge-update blog ini&#8230; karena besok, materiNya mulai agak berat, cie&#8230;&#8230;&#8230; padahal abip sendiri belum sukses nyettingNya, huehehehe tapi malem ini bakal di kebut, di tes dulu [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=abip0rcl.wordpress.com&amp;blog=1313524&amp;post=12&amp;subd=abip0rcl&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><strong>alter session set nls_date_format = &#8216;dd-mm-yy hh24:mi:ss&#8217;;</strong><br />
session altered</p>
<p><strong>select sysdate from dual;</strong><br />
03-07-07 17:16:45</p>
<p>hari ini kayanya udahan dulu, doain abip tetep masuk kantor besok ya, biar bisa nge-update blog ini&#8230;</p>
<p>karena besok, materiNya mulai agak berat, cie&#8230;&#8230;&#8230;</p>
<p>padahal abip sendiri belum sukses nyettingNya, huehehehe</p>
<p>tapi malem ini bakal di kebut, di tes dulu terus abip bahas deh di mari</p>
<p><strong>Bahasan besok : pilihan yang belum bisa abip pastiin sekarang </strong></p>
<p>* <strong>Oracle Data Guard : Setting Physical Standby Database (abip sendiri belum berhasil, hehehe)<br />
</strong></p>
<p>* <strong>Oracle Security : User Password / Profile, Auditing</strong></p>
<p>* <strong>Oracle Backup and Recovery (basics without RMAN)</strong></p>
<p>* <strong>Oracle Backup and Recovery (with RMAN)</strong></p>
<p>* <strong>Oracle Performance And Tuning (tapi yang standar aja ya)<br />
</strong></p>
<p><strong>Bonus :</strong></p>
<p>1. <strong>Flashback Technologies (Versions query, Table, Drop)</strong></p>
<p>2. <strong>Locking Mechanism In Oracle Database</strong></p>
<p><strong>SQL&gt; commit;</strong><br />
commit completed.</p>
<p><strong>regards,</strong></p>
<p>abip</p>
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			<media:title type="html">abip_oracle</media:title>
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		<title>flashback database</title>
		<link>http://abip0rcl.wordpress.com/2007/07/03/flashback-database/</link>
		<comments>http://abip0rcl.wordpress.com/2007/07/03/flashback-database/#comments</comments>
		<pubDate>Tue, 03 Jul 2007 08:47:44 +0000</pubDate>
		<dc:creator>abip0rcl</dc:creator>
				<category><![CDATA[flash IT back !!!]]></category>

		<guid isPermaLink="false">http://abip0rcl.wordpress.com/2007/07/03/flashback-database/</guid>
		<description><![CDATA[Flashback Database adalah fitur baru oracle untuk mengembalikan database pada waktu tertentu di masa lalu&#8230; Flashback Database Tidak Menggunakan Informasi Dari Undo Tablespace Kapan Memakai Flashback Database : 1. User di drop dengan tidak sengaja 2. Table tidak sengaja di truncate 3. Batch job (saya ga terlalu hapal, batch job yang seperti apa) Memeriksa aktif [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=abip0rcl.wordpress.com&amp;blog=1313524&amp;post=10&amp;subd=abip0rcl&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Flashback Database adalah fitur baru oracle untuk mengembalikan database pada waktu tertentu di masa lalu&#8230;</p>
<p>Flashback Database Tidak Menggunakan Informasi Dari Undo Tablespace</p>
<p>Kapan Memakai Flashback Database :</p>
<p>1. User di drop dengan tidak sengaja</p>
<p>2. Table tidak sengaja di truncate</p>
<p>3. Batch job (saya ga terlalu hapal, batch job yang seperti apa)</p>
<p><strong>Memeriksa aktif tidaknya Flashback Database Features :</strong><br />
SQL&gt; select flashback_on from V$database;</p>
<p><strong>KETENTUAN :</strong><br />
database dalam archive log mode,</p>
<p>check dengan = SQL&gt; archive log list;</p>
<p>jika belum dalam keadaan archive log mode;</p>
<p>SQL&gt; shutdown immediate;</p>
<p>SQL&gt; startup mount exclusive;</p>
<p>SQL alter database archivelog;</p>
<p>SQL&gt; alter database open;</p>
<p><strong>cek ukuran flash recovery area :</strong></p>
<p>SQL&gt; show parameter db_recovery_file_dest; akan ditampilkan direktory flash recovery area dan ukuran</p>
<p><strong>menentukan ukuran flash recovery area</strong></p>
<p>1. select sum(bytes)/1024/1024 as mb  from (select bytes from v$datafile union all select bytes from v$tempfile);</p>
<p>misal,hasilnya : 890M;</p>
<p>select sum(blocks*block_size)/1024/1024 as mb from v$archived_log where completion_time &gt; sysdate -1;</p>
<p>misal, hasilnya : 50M;</p>
<p>hitung, dengan perhitungan = 2 * 890 M + 50M = 1830 M;</p>
<p>buat 20 % lebih banyak : 20% * 1830 = 366 M</p>
<p>Yang diiperlukan = 1830 + 366 =  2196 M;</p>
<p><strong>mengubah ukuran recovery area :</strong><br />
SQL&gt; alter system set db_recovery_file_dest_size=2196M;</p>
<p><strong>Mengaktifkan Flashback Database :</strong><br />
1. SQL&gt; shutown immediate;</p>
<p>2. SQL&gt; startup mount exclusive;</p>
<p>3. SQL&gt; alter database flashback on;</p>
<p>4. SQL&gt; alter database open;</p>
<p><strong>FLASHBACK_RETENTION_TARGET</strong><br />
berapa lama waktu terakhir flashback database;</p>
<p><strong>untuk melihat retention target dari flashback : SQL&gt; </strong>show parameter db_flashback_retention_target  (in minutes)</p>
<p><strong>untuk mengubah retention target, misal 2 hari : SQL&gt;</strong> alter system set db_flashback_retention_target=2880</p>
<p>Contoh :</p>
<p>1. connect sys/pwd as sysdba</p>
<p>2. alter session set nls_date_format=&#8217;dd-mm-yy hh24:mi:ss&#8217;;</p>
<p>3. set time on;</p>
<p>4.  03-07-07 15:21:25 SQL&gt; create user abip identified by orcl;</p>
<p>5. 03-07-07 15:22:00 SQ&gt;commit;</p>
<p>6. 03-07-07 15:28:00 SQL&gt;drop user;</p>
<p>7. 03-07-07 15:28:05 SQL&gt; commit;</p>
<p>dengan menggunakan flashback database kita dengan mudah dan cepat melakukan recovery pada user tersebut</p>
<p><strong>cara :</strong></p>
<p>8. shutdown immediate;</p>
<p>9. startup mount;</p>
<p>10. flashback database as of timestamp(to_timestamp(&#8217;03-07-07 15:24:00&#8242;,&#8217;dd-mm-yy hh24:mi:ss&#8217;));</p>
<p>11. alter database open resetlogs;</p>
<p>tes, untuk melihat hasilnya</p>
<p>SQL&gt; select username from dba_users where username = &#8216;ABIP&#8217;;</p>
<p><strong>v$flashback_database_log</strong> : anda bisa melihat oldest scn, oldest_time,retention target, ukuran flashback database sekarang (dalam bytes), perhitungan ukuran flashback data yang dibutuhkan untuk retention target pada saat ini</p>
<p>SQL&gt; select oldest_flashback_scn, oldest_flashback_time, retention_target, bytes/(1024*1024) as &#8220;mb&#8221;, estimated_flashback_size from  V$FLASHBACK_DATABASE_LOG</p>
<p><strong>v$flashback_database_stat</strong> : untuk me-monitor i/o overhead dari prosess pencatatan flashback data</p>
<p><strong>regards</strong></p>
<p><strong>  </strong>abip</p>
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		<title>change user name</title>
		<link>http://abip0rcl.wordpress.com/2007/07/03/change-user-name/</link>
		<comments>http://abip0rcl.wordpress.com/2007/07/03/change-user-name/#comments</comments>
		<pubDate>Tue, 03 Jul 2007 07:32:30 +0000</pubDate>
		<dc:creator>abip0rcl</dc:creator>
				<category><![CDATA[technical]]></category>

		<guid isPermaLink="false">http://abip0rcl.wordpress.com/2007/07/03/change-user-name/</guid>
		<description><![CDATA[oracle tidak menyediakan fitur khusus untuk secara langsung mengubah nama user cara alternatif adalah dengan menggunakan fitur oracle data pump simulasi nama user (lama) = abip nama user (baru) = abip0rcl dengan catatan user baru VALID cara2 : 1. buat database directory : sql&#62; create or replace directory dumpdir as &#8216;d:\&#8217;; 2. beri hak baca [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=abip0rcl.wordpress.com&amp;blog=1313524&amp;post=8&amp;subd=abip0rcl&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>oracle tidak menyediakan fitur khusus untuk secara langsung mengubah nama user</p>
<p>cara alternatif adalah dengan menggunakan fitur oracle data pump</p>
<p><strong>simulasi</strong><br />
nama user (lama) = abip</p>
<p>nama user (baru) = abip0rcl</p>
<p>dengan catatan user baru VALID</p>
<p><strong>cara2 :</strong><br />
1. buat database directory :</p>
<p>sql&gt; create or replace directory dumpdir as &#8216;d:\&#8217;;</p>
<p>2. beri hak baca dan tulis directory tersebut ke user</p>
<p>sql&gt; grant read, write on directory dumpdir to abip</p>
<p>3. pindah ke host-level</p>
<p>jalankan : expdp system/password schemas=abip directory=dumpdir dumpfile=abipdmp.dmp logfile=expabipschema.log</p>
<p>job_name=expabipjob</p>
<p>4.  import</p>
<p>jalankan :</p>
<p>impdp system/orcl dumpfile=abipdmp.dmp directory=dumpdir schemas=abip LOGFILE=impabipschema.log</p>
<p>REMAP_SCHEMA=abip:abip0rcl TABLE_EXISTS_ACTION=replace</p>
<p>TABLE_EXISTS_ACTION : apabila pada schema abip0rcl terdapat nama tabel yang sama dengan import file</p>
<p>maka, table yang ada di schema abip0rcl akan di replace dengan import file</p>
<p><strong>TABLE_EXISTS_ACTION :</strong></p>
<p>1. SKIP : akan tetap menggunakan tabel milik abip0rcl schema (<strong>default)</strong><br />
2. APPEND : akan menambahkan row dari imporfile ke tabel.</p>
<p>3. TRUNCATE : truncate tabel yang telah ada, kemudian menambahkan row</p>
<p>4. REPLACE : replace dengan yang baru</p>
<p><strong>regards</strong></p>
<p>abip</p>
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