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• Java enviroment book recommendations

  - by ipavlic

  I come from a C# background and would like to learn Java. Programming and Java as a language are not a problem. What is bewildering to me is the sheer amount of various choices in "Java environment" - Ivy, Maven, Ant, JAXB, Glassfish, JBoss, Struts, Spring are just some of the names that I keep seeing. I am looking for "who is who" and "who works together" beginner's guide. Is there such a book? Something similar?

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• Learning low latency C++ and Java?

  - by user997112

  I'm currently in a role where I dont get to write any C++ or Java. However, the role is good because provides me with exposure to the business side (i'm interested in finance). Eventually I would like to get into high frequency trading infrastructure. Therefore, outside of work hours i'd like to maximise the knowledge I can gain about high performance Java and C++. I already have the Java Performance Tuning book, which is ok but not impressive. Can people recommend anymore latency blogs/books/websites for learning about making C++/C/Java or even Unix very fast? Or perhaps making the network parts of the OS (if re-writing Unix components) faster? EDIT: Or perhaps we could make this THE thread for advice on writing fast code

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• Cikk az Oracle Database In-Memory elonyeirol

  - by user645740

  Megjelent egy cikk a forradalmi újdonságot jelento Oracle Database In-Memory adatbázis funkcióról a bitport.hu-n: Ugorjunk szintet a döntéshozatal gyorsaságában! címmel. A Database In-Memory legfontosabb elonyei: Az alkalmazások változatlanok, nem kell semmit megváltoztatni rajtuk. Úgyanúgy minden megtalálható a diszken, nincs semmi változás a mentésekben sem, az élet ugyanúgy megy tovább, Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 „csak" sokkal gyorsabb lesz a muködés! Pillanatok alatt bekapcsolható, és beállítható, szinte nem igényel konzultációs tevékenységet.csak azt kell kiválasztani, milyen objektumokra lépjen életbe, milyen tömörítést használjon hozzá, és milyen prioritással töltse be a memóriába az adatokat. Más gyártók részmegoldásaihoz nagy bevezetési költségek kapcsolódnak! Nem kell hozzá új infrastuktúra elem, nem kell hozzá új szerver sem Minden Oracle Database alapú rendszerhez használható: tranzakciós rendszerekhez, vegyes rendszerekhez és adattárház, üzleti analitikai, üzleti intelligencia rendszerekhez is. Oracle Database In-Memory

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• why client can not receive message from server (java) [migrated]

  - by user1745931

  I have just started learning java. I modified the client side code for a server/client communication program, by creating two threads for the client side, main thread for receiving user's input, and inputThread for receiving server's response. I am sure that server has sent the response to client, however, no response message is obtain at client. Here is my code. Can anyone help me to figure it out? Thanks package clientnio; import java.net.*; import java.nio.*; import java.io.*; import java.nio.channels.*; import java.util.Scanner; public class ClientNIO { public static int bufferLen = 50; public static SocketChannel client; public static ByteBuffer writeBuffer; public static ByteBuffer readBuffer; public static void main(String[] args) { writeBuffer = ByteBuffer.allocate(bufferLen); readBuffer = ByteBuffer.allocate(bufferLen); try { SocketAddress address = new InetSocketAddress("localhost",5505); System.out.println("Local address: "+ address); client=SocketChannel.open(address); client.configureBlocking(false); //readBuffer.flip(); new inputThread(readBuffer); /* String a="asdasdasdasddffasfas"; writeBuffer.put(a.getBytes()); writeBuffer.clear(); int d=client.write(writeBuffer); writeBuffer.flip(); */ while (true) { InputStream inStream = System.in; Scanner scan = new Scanner(inStream); if (scan.hasNext()==true) { String inputLine = scan.nextLine(); writeBuffer.put(inputLine.getBytes()); //writeBuffer.clear(); System.out.println(writeBuffer.remaining()); client.write(writeBuffer); System.out.println("Sending data: "+new String(writeBuffer.array())); writeBuffer.flip(); Thread.sleep(300); } } } catch(Exception e) { System.out.println(e); } } } class inputThread extends Thread { private ByteBuffer readBuffer; public inputThread(ByteBuffer readBuffer1) { System.out.println("Receiving thread starts."); this.readBuffer = readBuffer1; start(); } @Override public void run() { try { while (true) { readBuffer.flip(); int i=ClientNIO.client.read(readBuffer); if(i>0) { byte[] b=readBuffer.array(); System.out.println("Receiving data: "+new String(b)); //client.close(); //System.out.println("Connection closed."); //break; } Thread.sleep(100); } } catch (Exception e) { System.out.println(e); } } }

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• Where to after a year of java? [closed]

  - by avatarX

  I've just finished a my first year of programming Java at varsity and I have a three month break. In terms of my development would it be better to: Cover Java in more depth to acquire a more intermediate level of ability Learn a new programming language (if so which) to a similar level as my current Java ability Spend timing learning introductory discrete maths, algorithms and data structures I'm also open to any other possibilities that would be beneficial but that could be covered in about 3 months.

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• Mal kurz nachgefragt: Oracle Datenbank Security-Optionen

  - by Anne Manke

  Am 13.11.2012 fand der erste Oracle Healthcare Security Workshop in Düsseldorf statt. Um Sie mit nützlichen Informationen zu den Oracle Security-Optionen vor und nach unserem Workshop zu versorgen, werden wir ab heute, jede Woche eine Security-Option vorstellen. Um schnell einen Überblick zu bekommen, gibt es die Kategorien "WER" - hier wollen wir die Zielgruppe für die Funktion vorstellen, also, wer diese spezifische Option nutzen kann und sollte. Unter der Kategorie "WAS" werden wir die Funktionsweise erläutern, und unter "WIE" finden Sie Beispiele für den Einsatz der Security-Option. Die Kategorie "Und sonst so?" behandelt allgemeine oder oft gestellte Fragen zu unseren Optionen.  Viel Spaß beim Lesen und sollte es Fragen geben, können Sie uns jederzeit anrufen! Ihr Oracle Healthcare Team

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• Oracle Tax ETPM V2.3.0 Spanish documentation is Now Available

  - by Rick Finley

  This provides a Latin American Spanish user assistence (UA) language pack for Oracle ETPM v2.3.0.  Please note, this language pack translates the ETPM online help to Latin American Spanish Language Patch Download: 1. To download the Latin American Spanish language pack please log in to My Oracle Support https://support.oracle.com/CSP/ui/flash.html. 2. Select the 'Patches and Updates' tab 3. Type in the Patch number: 13739273 4. Click the Patch number 5. Download using the yellow download button on the right hand side

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• take my Java skills to the next level

  - by waingram

  I am well versed in the basics of Java programming, although through most of my career I have been maintaining, upgrading, and debugging someone else's Java code. I am mainly familiar with basic servlet applications. I have a strong beginner knowledge of Maven and Ant. I have more web development with Ruby on Rails, but would like to bring my Java skills up to par with regard to web development. It seems the world of Java is so big, I have no idea what the next logical step is for me. Spring? JAX-RB? EJBs? What is the next logical step for someone like me and how would you recommend I approach it?

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• Oracle Solaris 11 Webinare für Entwickler und Admins

  - by Detlef Drewanz

  Am 27. März beginnt eine Webinar Reihe für Solaris Entwickler und Administratoren, die sich mit dem Rollout von Anwendungen in Oracle Solaris 11 beschäftigt. Im 14-tägigen Rhythmus geht es um das Image Packaging System (IPS), Bootenvironments, Zonen, SMF und vielem anderen mehr. Software Engineers geben ihre Erfahrungen hier weiter. Das ist eine gute Gelegenheit, sich weiter in die Details von Oracle Solaris 11 einzuarbeiten. Details zur Anmeldung sind unter http://www.oracle.com/technetwork/server-storage/solaris11/overview/webinar-series-1563626.html nachzulesen.

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• Join Us at Oracle OpenWorld Latin America (Dec 4-6)

  - by Zeynep Koch

  Hello to all Latin Americans,  Oracle Openworld Latin America is starting tomorrow. Oracle Linux will be showcased in different sessions and in the exhibition area. Here's some of the links and details to our sessions: Session Schedules: http://www.oracle.com/openworld/lad-en/session-schedule/index.html Oracle Linux sessions: New Features in Oracle Linux: A Technical Deep Dive,    Dec 4, 13:30-14:30, Mezzanine Room 7 Oracle Linux Strategy and Roadmap,   Dec 4, 17:15-18:15, Mezzanine Room 5 Oracle OpenWorld Latin America Exhibition Halls Hours Tuesday, December 4 12:00–19:3018:15–19:30 (Dedicated Hours)Wednesday, December 511:00–19:3018:30–19:30 (Dedicated Hours)Thursday, December 6 11:00–19:0017:45–19:00 (Dedicated Hours) We will also hand out the following in our booth, don't forget to visit us: - Oracle Linux and Oracle VM DVD Kit  - Server Virtualization for Dummies  See you there :)

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• Setting Up and Running Summary Advisor on an Exalytics Machine (Oracle-by-Example)

  - by Saresh

  If you are running Oracle BI on an Exalytics machine, you can use Summary Advisor to identify the aggregates that will increase query performance. Summary Advisor intelligently recommends an optimal list of aggregate tables based on query patterns that will achieve maximum query performance gain while meeting specific resource constraints. Summary Advisor then generates an aggregate creation script that can be run to create the recommended aggregate tables. Aggregate tables reduce query times by storing precomputed results for queries that include rolled-up data. This tutorial covers steps to set up, configure, and run Summary Advisor on an Exalytics machine using TimesTen database as a target for storing aggregates. You can find the Oracle By Example (OBE) in the Oracle Learning Library (OLL). The content in OLL is available to all customers, partners, and employees.

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• Collision: Vector class (java)

  - by user8363

  When handling collision detection / response and you need a Vector class, do you need to create that class yourself or is there a java class you can use? A vector class should have methods like: subtract(Vector v), normalize(), dotProduct(Vector v), ... At the moment it seems logical to use classes like java.awt.Rectangle and java.awt.Polygon to calculate collisions. Would I be right to use these classes for this purpose? My question is not about how to implement collision detection, I know how that works. However I'm wondering what would be a correct and clean way to implement it in java since I'm fairly new to the language and to application development in general.

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• Which platform to choose from .Net or Java [closed]

  - by SahilMahajanMj

  I know that there is a lot healthy discussion about this topic. but my case is entirely different from these discussions. I have just passed out my graduation. During the graduation period, i had done C#.net and java as well. Now i am working as Android programmer in a company. In the recent times, i have heard a lot about pros and cons of these platforms. What our seniors used to suggest that, ASP.net is a lot better than JSP for website developement. .net provides us lot of in built tools and API's for building powerfull applications. Java's platform independancy has always been issue among them. Security fetures are more in java. .Net has more powerfull IDE's. Now i am a bit confused on which platform to choose from these. I found java better from two, so did i prefer to choose android. Also, the discussion always ends with an issue that java has no scope for job as far has .net does. I would like to hear suggestions on this topic, but it would be better, if you consider indian IT market for this discussion.

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• From Java to Javascript? [duplicate]

  - by theGreenCabbage

  This question already has an answer here: Are there any OO-principles that are practically applicable for Javascript? 2 answers I am primarily a Java programmer. Because of its OO principles and the general paradigm of Java programming, like wrapping things in static variables, and having things return specific types, heavily aids me in "visualizing" a program. Instead of thinking of a big program, I can, instead, focus on smaller organized parts of my eventual program, and add functionality and build up from there. Thus, I have trouble programming in other languages. Or at least, I have not been able to program in the same ability as I do in Java compared to other languages. I know Javascript has OO principles, so I'd like to learn this language in a OO-based like I would program with Java. Is this possible?

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• Oracle Endeca User Interface Design Pattern Library Available

  - by ultan o'broin

  Yes! The Oracle Endeca User Interface Design Pattern Library is now available for all fans of great UI design solutions for search, discovery, and navigation! The patterns explain and show some great UI realizations and include consumer world examples we can relate to. Thanks to the Oracle Endeca team and Applications UX who worked closely together to bring this great user experience resource back out to customers and partners who want to build cutting edge apps, sites, and integrations. Some great insights into how these UI design patterns can bring magical information discovery and more to users, as well as what makes Endeca people tick, are available from the Usable Apps blog Oracle Endeca User Experience: From Putting the E in E-Commerce to Magical Information Discovery.

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• Rendering of Oracle Secure Global Desktop's Administration Console on Modern Browser Versions

  - by Mohan Prabhala

  For customers using Oracle Secure Global Desktop version 4.6x, one of the issues reported is the improper rendering of the administration console when using modern browser versions such as Safari 5, Firefox 4+ or Internet Explorer 9. We are pleased to provide a fix for use of these modern browser versions when using Oracle Secure Global Desktop 4.6x. Please refer to Doc ID 1367923.1 on My Oracle Support. The solution involves a new .jar file, oracletheme.jar and following a few simple instructions. Download the new oracletheme.jar to /tmp and backup the existing one located at  /opt/tarantella/webserver/tomcat/<tomcat_ver>/webapps/sgdadmin/WEB-INF/lib/oracletheme.jar Stop the webserver  /opt/tarantella/bin/tarantella stop webserver Copy the new oracletheme.jar to the correct directory cp /tmp/oracletheme.jar /opt/tarantella/webserver/tomcat/<tomcat_ver>/webapps/sgdadmin/WEB- INF/lib/oracletheme.jar Verify permissions for the file -rw-r----- 1 root ttaserv 280449 Sep 9 2010 oracletheme.jar Finally, restart the webserver /opt/tarantella/bin/tarantella start webserver

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• Oracle Master Data Management at OOW 2012: A Look Back

  - by Mala Narasimharajan

  Oracle Master Data Management had a great showing at OOW 2012 ! Special thanks to our customers and partners for presenting with us, sharing their use cases and successes as well as co-sponsoring events.  Almost every session at the show featured a customer and the tremendous success or transformation Oracle MDM resulted in at their organization.  At the DemoGrounds, Oracle MDM saw tremendous interest with many individuals enquiring to see demos, and have their technical questions answered.  The demos provided a perfect opportunity to showcase technical enhancements as well as what features are on the horizon.The MDM customer appreciation dinner event was a smashing success as cusotmers and partners enjoyed a spectacular water view, fine dining and cocktails and one of San Francisco's finest restaurants - The Water Bar.  In a short while the planning for next year's OpenWorld will be under full swing and we can't wait to get started.  See you at OOW 2013!!    

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• Oracle Tax ETPM V2.3.1 Portuguese documentation is Now Available

  - by Rick Finley

  This provides a Portuguese user assistence (UA) language pack for Oracle ETPM v2.3.1.  Please note, this language pack translates the ETPM online help to Iberian Portuguese.   Language Patch Download: 1.   To download the Portuguese language pack please log in to My Oracle Support https://support.oracle.com/CSP/ui/flash.html. 2.     Select the 'Patches and Updates' tab 3.     Type in the Patch number: 13927078 4.     Click the Patch number 5.     Download using the yellow download button on the right hand side  

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• Is this Java 7 security thread an issue if you have Java 7 installed but not as the default?

  - by user1361315

  I have a MBP with osx mountain lion installed, and I believe from what I read Mac's only ship with Java 6 by default. I'm not at my computer at the moment, but I am pretty sure I have installed Java 7 but it isn't my default java version (I think I installed it and I have to explicitly reference it to use it). Does this mean I am safe from this particular thread? Reference: http://www.pcworld.com/businesscenter/article/261748/researchers_find_critical_vulnerability_in_java_7_patch_hours_after_release.html

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• Can't open Minecraft with java

  - by Shingaling

  I know this has been asked here before, but none of the solutions have worked for me. I have a fresh install of Ubuntu 12.04 on my system and I installed Open Java 7 and I downloaded Minecraft. I right clicked Minecraft went to properties and set it as an executable and then went to open with and Java is no where to be found in the list. I made a new Java desktop file in /usr/share/applications and now when I go to the list Java is there and I set Minecraft to open with it by default but when I open it nothing at all happens. Now how am I supposed to get Minecraft to work?

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• Does anybody develops Java desktop applications? [closed]

  - by Eirc man

  I was just wondering if there are there developers making java software for desktops. Is it even worth it, do any developers do that for living. I am making a chat application using sockets and and java GUI, just for fun, but then I wanted to see some examples of desktop apps, but did not find many. I have heard that Netbeans, is made using java, but the Netbeans in my Windows to me it seems like any other native Windows application

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• Installing Chrome Java Plugin

  - by kyleskool

  I've been trying to install the Java plugin for Chrome for a couple hours now, and I figured it was time to ask people with more experience. I can't seem to get it working. My current Java version is the 64-bit OpenJDK 1.6.0_24. I tried installing the IcedTea plugin to no avail. I have Ubuntu 12.04 64-bit installed at the moment. When I tried testing if java was enabled in Chrome, any website with a Java applet would not load (when I disabled the plugin, they loaded, but not the applet). I followed the instructions from here: http://technonstop.com/install-java-plugin-ubuntu-linux which said to create this script and run it: JAVA_HOME=/usr/lib/jvm/jdk1.7.0 MOZILLA_HOME=~/.mozilla mkdir $MOZILLA_HOME/plugins ln -s $JAVA_HOME/jre/lib/i386/libnpjp2.so $MOZILLA_HOME/plugins Note: You may need to change the value of JAVA_HOME so that it correctly points to your installation of the JDK. 64-bit users will need to change the final line to: ln -s $JAVA_HOME/jre/lib/amd64/libnpjp2.so $MOZILLA_HOME/plugins but this did not work as well. I just test it in Firefox and it's working. Still nothing for Chrome

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• Announcing Oracle Solaris 11.1

  - by Larry Wake

  This morning, we announced Oracle Solaris 11.1, the first update to Oracle Solaris 11.This builds on all the things we've done to make Oracle Solaris the best operating system for enterprise cloud computing, so no surprises on what we've focused on: enhancements for cloud infrastructure, extreme availability for enterprise applications, and continued payoff from our co-engineering work with the rest of the Oracle software portfolio. You can learn more by visiting oracle.com/solaris, and our Oracle Technology Network Oracle Solaris 11.1 page. If you're at Oracle OpenWorld, be sure to attend Solaris engineering VP Markus Flierl's general session at 10:15 today, in Moscone South 103, where he'll be going into detail on Oracle Solaris 11.1 . And, be sure to sign up for our online launch event on November 7th, featuring Markus, fellow engineering VP Bill Nesheim, and a deep bench of Solaris engineers. It's hard to believe that it's been 20 years since Solaris 2.0 first shipped -- stay tuned for the next 20!

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• ?????????????????????????/???????????Java EE??????????????????????????????????JavaOne Tokyo 2012?????|WebLogic Channel|??????

  - by ???02

  ??????·???????????????????·???????????????????/????????????????????????????――?????6?????????????????????WebLogic Server?????????????????????????????????????????????????????????2012?4???????JavaOne Tokyo 2012????????????????????·????????????????Java EE???????????????????????????????(???)??????????????????????????　?????????????NTT??????????????????????????·???????????????????????2005???????1??????????·?????????2006??????????????????????Java EE??????????????????????????????????????????????????????????????????????????????????????????????????????????? DU ?????? ???????????????? ????????????　?? ????????????????????????????????31????????????????????????????·???????????????????????????30?????????????20??????????????3?????????????????????????????????????????????2???????????????????????????????????????????????????????????????????????????????????????????　????????????????????????????????????????????????????????????2??????????????????????:??/???????????????????????????????????2??????????/???????:????????????????????????????????2??~1????????????/???????????????·???????????　?????????????????????????????2?????????????????????????·????(B2C????????????????)?????????????????????????????????????????????????????????????????????????????/??????????????????????　?????????????????????????????????????(???)?????????(??/???????)???????????????????????????????????????????????????????????????????????????????????????????????·?????WebLogic Server????????·?????Informix????????????　?????????????????????????????????????????B2C??????????C2C???????????????????????????C2C????????????????????????????????????????????????????????????????????????????????????????????????????????????·????????????????????????????????1????????????????????????????????????????????????　????????????????????????????????????????????????????????????????????????????????Java EE?????????????????????????????????????????????????????????????????????????????????????????????????????????????　??????????????????3???????????????????(Inexpensive):????????????????????????????????(Agile):???????????????????????????(Simple):????????????????????????　??????????2006???5????????????????????????????????????????Java EE?????????????????????????????????Java?????????????(???)???????????·??????????????????????????????????????????????????????????????????????Java???????????????????????????????????WebLogic Server??????????????????????????????????????(???)????????????????????????????????　????????????????????????????????????????????WebLogic Server?????????????????????????/???????????????????GlassFish????????????GlassFish????Java EE?????????????????????????????????????????WebLogic Server??????????????????Tomcat???????????????(???)??????????????????????????????????　????????????????????????????WebLogic Server?????????????WebLogic Server?????????????????????????????????????JRockit Mission Control???????????????(???)??????WebLogic Server?GlassFish?????　???????????????????????????????????C2C??????????????????????????????????????2006????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　?????????????????????????????????????????????RDB?????/????·???(KVS)???????NoSQL??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　?????????????/??????????API???????????????????????????????????????KVS?????????????????GlassFish?????KVS??????????API?GlassFish??????????????????????????JAX-RS???????????????(REST API)????????????????????????????????????????????????????????????????　?KVS??????????API?????????????????????????????????????????????????????????????????????????????????????????????????(???)??????????　????API?????????????????????????????????????????????170??????????　??????????Ruby on Rails??????????????????????????????(???)?????????????????????????????????????(???)??????????????????????????????????????????????????????????????????????Maven 2???????????????????????????????????????????????????????????????????????????????????????????????　GlassFish???????????????????????????????????????????????????????????????????????????????　???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　?????????????????????????????????????????????????????????????????????????????????????????/?????????????????????????????????????????????????/????????????????????????????

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• ???????/???RAC????10??!US Oracle?????????????? Oracle Real Application Clusters??????????

  - by user788995

  ????? ??:2012/02/20 ??:??????/?? Oracle 9i ? Real Application Clusters ?????????????10??????? RAC ???????????????? 11g R2 ???????????????Oracle US??? RAC ?????????????????? Oracle RAC ???Oracle RAC ? More than a DatabaseOracle RAC ?????????Oracle RAC ????????????????? Oracle RAC ????????? ????????????????? http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/120130_B-8_RAC.wmv http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/mp4/120130_B-8_RAC.mp4 http://www.oracle.com/technetwork/jp/ondemand/db-new/b-8-rac-1524112-ja.pdf

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