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  • How can I set a second screen (DISPLAY=:0.1) as the default gnome display?

    - by Pedro Silva
    Due to various reasons, I have my main monitor set as the secondary display in xorg.conf. I would like to have gnome initialize metacity, gnome-panel as running primarily on :0.1, instead of :0.0. Is this possible at all? To clarify, this is a laptop with its LCD turned off. My main monitor is connected to the VGA out and is driven by the nouveau driver for NVIDIA; a secondary monitor is on a displaylink usb-vga donverter. The seconday monitor is set in xorg.conf as the primary display (no way around it). I can do things like DISPLAY=:0.1 gnome-terminal to run applications on the main monitor. My question is whether it is possible to do this (GNOME-) system-wide.

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  • Identity Map Pattern and the Entity Framework

    - by nikolaosk
    This is going to be the seventh post of a series of posts regarding ASP.Net and the Entity Framework and how we can use Entity Framework to access our datastore. You can find the first one here , the second one here and the third one here , the fourth one here , the fifth one here and the sixth one here . I have a post regarding ASP.Net and EntityDataSource. You can read it here .I have 3 more posts on Profiling Entity Framework applications. You can have a look at them here , here and here . In...(read more)

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  • Interviews by Software Companies

    - by Glenn Nelson
    I have been chosen as one of the 12 final people for a full out scholarship to the college of my choice and it is paid for by a software company so long as I major in Computer Science.I have already had to write an essay on what has most shaped my life (Programming being it) and that was the basis for the interview decision. I now have to go in for an interview with people from the company for the final decision in a week. I do believe I have a good foundation in computer science already. I have roughly 4 years of programming experience in Java, C++, ASM and your typical web stuff. I have done everything from making my own CMS for my site to an assembler to network file transfer applications. That said what types of questions should I expect in an interview of this sort? Do I seem reasonably knowledgeable?

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  • How can I remove the Unity Launcher?

    - by Magnus Hoff
    I'm running Ubuntu Netbook. With the recent upgrade to 10.10 I was excited about the Application Menu/the global menu bar and its implications for screen real estate. Unfortunately, the Unity Launcher on the left hand side of the screen takes more valuable space away than the new menu bar gives. Is there any way to get rid of the Launcher? Alternatives I would be satisfied with include: Not having the Launcher at all Having the Launcher hide automatically Having applications open on top of the Launcher (not next to it) (edit:) Note that I am specifically looking for a way to keep the global menubar, while getting rid of the Launcher.

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  • Patterns to refactor common code in multi-platform software

    - by L. De Leo
    I have a Django application and a PyQt application that share a lot of code. A big chunk of the PyQt application are copied verbatim from the Django application's views. As this is a game, I have already an engine.py module that I'm sharing among the two applications, but I was wondering how to restructure the middle layer (what in Django corresponds to the largest part of the views minus the return HttpResponse part) into its own component. In the web application the components are those of a classic Django application (with the only exception that I don't make any use of models): the game engine the url dispatcher the template the views My PyQt application is divided into: the game engine the UI definition where I declare the UI components and react to the events (basically this takes the place of the template and the url dispatcher in the Django app) the controller where I instantiate the window object and reproduce the methods that map the views in the Django app

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  • Turn on anonymous access in SharePoint2010 Site collection

    - by ybbest
    In this post, I would like to show you how to turn on anonymous access in SharePoint2010 Site collection using SharePoint Web UI. If you would like to achieve the same thing using PowerShell you can check this blog post here. 1. You need to go to Central AdminàManage Web Applications 2. Click Authentication provider 3. Click Default and Enable anonymous access 4. Go to your site collection and click on Site actions then click Site Permissions 5. Click on Anonymous Access 6. Select the Entire Web site and click OK. 7 Navigate to your site collection and boom you are all set for the anonymous access for your SharePoint site collection.

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  • http_proxy - not working with sudo [closed]

    - by Amil
    I am working on RHEL6 behind a proxy at my workplace. In order to make wget and other applications work, I modified my /etc/environment and added definitions for http_proxy, https_proxy, and ftp_proxy. I logged out and back in. As desired, wget works correctly. However, commands like sudo wget and sudo yum do not work. Upon further investigation, I see the reason is because my http_proxy settings are not being shown when I type "sudo env". In fact PATH is also reset. How can I get http_proxy to be set for sudo?

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  • A WPF Image/Text Button

    - by psheriff
    Some of our customers are asking us to give them a Windows 8 look and feel for their applications. This includes things like buttons, tiles, application bars, and other features. In this blog post I will describe how to create a button that looks similar to those you will find in a Windows 8 application bar. In Figure 1 you can see two different kinds of buttons. In the top row is a WPF button where the content of the button includes a Border, an Image and a TextBlock. In the bottom row are four...(read more)

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  • Is there any reason to use C++ instead of C, Perl, Python, etc.?

    - by Ehsan
    As a Linux (server side) developer, I don't know where and why should I use C++. When I'm going to performance, the first and last choice is C. When "performance" isn't the main issue, programming languages like Perl and Python would be good choices. Almost all of open source applications I know in this area has been written in C, Perl and Python, Bash script, AWK and even PHP, but no one goes to use C++. I'm not discussing about some other areas like GUI or web application, I'm just talking about Linux and about CLI and daemons. Is there any satisfiable reason to use C++?

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  • How to make Master PDF Editor the default for .pdf files

    - by Hedley Finger
    I want to make Master PDF Editor (MPE) the default for opening PDF files. I right-clicked a PDF file, chose Properties Open With. MPE was not listed. I clicked Show Other Applications but MPE was still not on the list. I tried opening the PDF file with MPE, editing, and then closing it. MPE still did not show up. So how do I make MPE the default program, or at least appear on the Other Programs or Show Other Programs?

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  • Qt Graphics et performances - le coût des commodités, un article de Gunnar traduit par Guillaume Belz

    Le 11 décembre 2009, la documentation de QPainter subissait un énorme ajout concernant l'optimisation de son utilisation. En effet, le bon usage de cet outil n'était pas accessible à tous, il n'était pas présenté dans la documentation. Ceci ne fut qu'un prétexte à une série d'articles sur l'optimisation de QPainter et de Qt Graphics en général. Voici donc le premier article de cette série, les autres sont en préparation : Qt Graphics et performances : ce qui est critique et ce qui ne l'est pas Pensez-vous que cet ajout à la documentation de QPainter sera utile ? Trouvez-vous les performances de vos applications trop faibles ?...

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  • Installing Ubuntu on a Windows CE 6.0 EzBook PC (ez-72a)

    - by nmacholl
    I recently inherited a cheap EzBook PC and decided it might be fun to throw Ubuntu on it. I have a USB all setup but for the life of me can't get it to boot from USB! I've looked online and can't seem to find the motherboard details anywhere to access the BIOS and more applications won't work on Windows CE so I'm stuck. Is there an obscure Windows CE installer out there? It's really frustrating when I can't get to the BIOS - and I don't have a manual. If anyone knows anything I'd appreciate it!

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  • Selling On Demand

    - by andrea.mulder
    In May 2010, eSilicon management began evaluating providers for a new CRM system - vetting a variety of CRM offerings. Using a rating system that scored vendors according to marketing, sales, services, features, usability, implementation time, and cost, the team chose Oracle CRM On Demand for the project. "Overall, Oracle CRM On Demand was the best system that was able to address all our pain points," says Janet Ang, senior applications developer and project manager of the CRM implementation at eSilicon. Read Selling On Demand, a feature article in the February 2011 issue of Profit Magazine, and find out how eSilicon achieved:Easy Implementation and Adoption Sales and Management Benefits High Productivity for Tech

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  • How to properly add webapps to unity on 13.10

    - by Germano Lisboa
    I'm new to ubuntu, and one of the features that made the change from windows was the integrated webapps. I installed ubuntu 13.10, installed the unity-webapps-service and the unity-chromium-extension via terminal. Once I opened Gmail, facebook, google docs, etc... they all offered me to install it on ubuntu. But all I get is the icon on the applications menu, there's no integration with the top bar or the HUD. Does anyone know how can I solve this?

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  • iPhone 5 : adaptateurs, nano-SIM, 3G+ en France et une action Apple prévue à 1.000 $

    L'iPhone 5 a un écran plus grand et une nouvelle connectique propriétaire Il arrive le 21 septembre, aux mêmes prix que l'iPhone 4S Edit de 23h30 : ajout des caractéristiques techniques complètes, de la partie sur la Nano-SIM et des prix officiels Cinq. Apple a bien présenté ce soir son iPhone 5, avec un écran de 4 pouces (1136 x 640 en 16/9e). Comme prévu. Que les développeurs se rassurent, les applications conçues pour les anciens iPhones ne seront pas étirées mais se verront ajouter deux bandes noires. Plus fin (7.6 mm), plus léger (112 grammes), plus rapide avec le processeur A6 (présenté comme 2 fois plus véloce, y compris dan...

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  • Organization &amp; Architecture UNISA Studies &ndash; Chap 5

    - by MarkPearl
    Learning Outcomes Describe the operation of a memory cell Explain the difference between DRAM and SRAM Discuss the different types of ROM Explain the concepts of a hard failure and a soft error respectively Describe SDRAM organization Semiconductor Main Memory The two traditional forms of RAM used in computers are DRAM and SRAM DRAM (Dynamic RAM) Divided into two technologies… Dynamic Static Dynamic RAM is made with cells that store data as charge on capacitors. The presence or absence of charge in a capacitor is interpreted as a binary 1 or 0. Because capacitors have natural tendency to discharge, dynamic RAM requires periodic charge refreshing to maintain data storage. The term dynamic refers to the tendency of the stored charge to leak away, even with power continuously applied. Although the DRAM cell is used to store a single bit (0 or 1), it is essentially an analogue device. The capacitor can store any charge value within a range, a threshold value determines whether the charge is interpreted as a 1 or 0. SRAM (Static RAM) SRAM is a digital device that uses the same logic elements used in the processor. In SRAM, binary values are stored using traditional flip flop logic configurations. SRAM will hold its data as along as power is supplied to it. Unlike DRAM, no refresh is required to retain data. SRAM vs. DRAM DRAM is simpler and smaller than SRAM. Thus it is more dense and less expensive than SRAM. The cost of the refreshing circuitry for DRAM needs to be considered, but if the machine requires a large amount of memory, DRAM turns out to be cheaper than SRAM. SRAMS are somewhat faster than DRAM, thus SRAM is generally used for cache memory and DRAM is used for main memory. Types of ROM Read Only Memory (ROM) contains a permanent pattern of data that cannot be changed. ROM is non volatile meaning no power source is required to maintain the bit values in memory. While it is possible to read a ROM, it is not possible to write new data into it. An important application of ROM is microprogramming, other applications include library subroutines for frequently wanted functions, System programs, Function tables. A ROM is created like any other integrated circuit chip, with the data actually wired into the chip as part of the fabrication process. To reduce costs of fabrication, we have PROMS. PROMS are… Written only once Non-volatile Written after fabrication Another variation of ROM is the read-mostly memory, which is useful for applications in which read operations are far more frequent than write operations, but for which non volatile storage is required. There are three common forms of read-mostly memory, namely… EPROM EEPROM Flash memory Error Correction Semiconductor memory is subject to errors, which can be classed into two categories… Hard failure – Permanent physical defect so that the memory cell or cells cannot reliably store data Soft failure – Random error that alters the contents of one or more memory cells without damaging the memory (common cause includes power supply issues, etc.) Most modern main memory systems include logic for both detecting and correcting errors. Error detection works as follows… When data is to be read into memory, a calculation is performed on the data to produce a code Both the code and the data are stored When the previously stored word is read out, the code is used to detect and possibly correct errors The error checking provides one of 3 possible results… No errors are detected – the fetched data bits are sent out An error is detected, and it is possible to correct the error. The data bits plus error correction bits are fed into a corrector, which produces a corrected set of bits to be sent out An error is detected, but it is not possible to correct it. This condition is reported Hamming Code See wiki for detailed explanation. We will probably need to know how to do a hemming code – refer to the textbook (pg. 188 – 189) Advanced DRAM organization One of the most critical system bottlenecks when using high-performance processors is the interface to main memory. This interface is the most important pathway in the entire computer system. The basic building block of main memory remains the DRAM chip. In recent years a number of enhancements to the basic DRAM architecture have been explored, and some of these are now on the market including… SDRAM (Synchronous DRAM) DDR-DRAM RDRAM SDRAM (Synchronous DRAM) SDRAM exchanges data with the processor synchronized to an external clock signal and running at the full speed of the processor/memory bus without imposing wait states. SDRAM employs a burst mode to eliminate the address setup time and row and column line precharge time after the first access In burst mode a series of data bits can be clocked out rapidly after the first bit has been accessed SDRAM has a multiple bank internal architecture that improves opportunities for on chip parallelism SDRAM performs best when it is transferring large blocks of data serially There is now an enhanced version of SDRAM known as double data rate SDRAM or DDR-SDRAM that overcomes the once-per-cycle limitation of SDRAM

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  • Enterprise Java and Hibernate [closed]

    - by KyelJmD
    I am now done learning the JavaSE. Now , I want to jump out of my comfort zone and learn how to program /create web applications using java. First My Question: What is the difference between Enterprise Java and Hibernate? are they a like? or Hibernate is a framework for java? Now that I am done learning "Core" java I need to move ahead. what are the things I need to learn to use Hibernate? and learn java. as of now I have no idea where should I go after learning "core java". and I don't know what path to go to

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  • Reference Data Management and Master Data: Are Relation ?

    - by Mala Narasimharajan
    Submitted By:  Rahul Kamath  Oracle Data Relationship Management (DRM) has always been extremely powerful as an Enterprise Master Data Management (MDM) solution that can help manage changes to master data in a way that influences enterprise structure, whether it be mastering chart of accounts to enable financial transformation, or revamping organization structures to drive business transformation and operational efficiencies, or restructuring sales territories to enable equitable distribution of leads to sales teams following the acquisition of new products, or adding additional cost centers to enable fine grain control over expenses. Increasingly, DRM is also being utilized by Oracle customers for reference data management, an emerging solution space that deserves some explanation. What is reference data? How does it relate to Master Data? Reference data is a close cousin of master data. While master data is challenged with problems of unique identification, may be more rapidly changing, requires consensus building across stakeholders and lends structure to business transactions, reference data is simpler, more slowly changing, but has semantic content that is used to categorize or group other information assets – including master data – and gives them contextual value. In fact, the creation of a new master data element may require new reference data to be created. For example, when a European company acquires a US business, chances are that they will now need to adapt their product line taxonomy to include a new category to describe the newly acquired US product line. Further, the cross-border transaction will also result in a revised geo hierarchy. The addition of new products represents changes to master data while changes to product categories and geo hierarchy are examples of reference data changes.1 The following table contains an illustrative list of examples of reference data by type. Reference data types may include types and codes, business taxonomies, complex relationships & cross-domain mappings or standards. Types & Codes Taxonomies Relationships / Mappings Standards Transaction Codes Industry Classification Categories and Codes, e.g., North America Industry Classification System (NAICS) Product / Segment; Product / Geo Calendars (e.g., Gregorian, Fiscal, Manufacturing, Retail, ISO8601) Lookup Tables (e.g., Gender, Marital Status, etc.) Product Categories City à State à Postal Codes Currency Codes (e.g., ISO) Status Codes Sales Territories (e.g., Geo, Industry Verticals, Named Accounts, Federal/State/Local/Defense) Customer / Market Segment; Business Unit / Channel Country Codes (e.g., ISO 3166, UN) Role Codes Market Segments Country Codes / Currency Codes / Financial Accounts Date/Time, Time Zones (e.g., ISO 8601) Domain Values Universal Standard Products and Services Classification (UNSPSC), eCl@ss International Classification of Diseases (ICD) e.g., ICD9 à IC10 mappings Tax Rates Why manage reference data? Reference data carries contextual value and meaning and therefore its use can drive business logic that helps execute a business process, create a desired application behavior or provide meaningful segmentation to analyze transaction data. Further, mapping reference data often requires human judgment. Sample Use Cases of Reference Data Management Healthcare: Diagnostic Codes The reference data challenges in the healthcare industry offer a case in point. Part of being HIPAA compliant requires medical practitioners to transition diagnosis codes from ICD-9 to ICD-10, a medical coding scheme used to classify diseases, signs and symptoms, causes, etc. The transition to ICD-10 has a significant impact on business processes, procedures, contracts, and IT systems. Since both code sets ICD-9 and ICD-10 offer diagnosis codes of very different levels of granularity, human judgment is required to map ICD-9 codes to ICD-10. The process requires collaboration and consensus building among stakeholders much in the same way as does master data management. Moreover, to build reports to understand utilization, frequency and quality of diagnoses, medical practitioners may need to “cross-walk” mappings -- either forward to ICD-10 or backwards to ICD-9 depending upon the reporting time horizon. Spend Management: Product, Service & Supplier Codes Similarly, as an enterprise looks to rationalize suppliers and leverage their spend, conforming supplier codes, as well as product and service codes requires supporting multiple classification schemes that may include industry standards (e.g., UNSPSC, eCl@ss) or enterprise taxonomies. Aberdeen Group estimates that 90% of companies rely on spreadsheets and manual reviews to aggregate, classify and analyze spend data, and that data management activities account for 12-15% of the sourcing cycle and consume 30-50% of a commodity manager’s time. Creating a common map across the extended enterprise to rationalize codes across procurement, accounts payable, general ledger, credit card, procurement card (P-card) as well as ACH and bank systems can cut sourcing costs, improve compliance, lower inventory stock, and free up talent to focus on value added tasks. Change Management: Point of Sales Transaction Codes and Product Codes In the specialty finance industry, enterprises are confronted with usury laws – governed at the state and local level – that regulate financial product innovation as it relates to consumer loans, check cashing and pawn lending. To comply, it is important to demonstrate that transactions booked at the point of sale are posted against valid product codes that were on offer at the time of booking the sale. Since new products are being released at a steady stream, it is important to ensure timely and accurate mapping of point-of-sale transaction codes with the appropriate product and GL codes to comply with the changing regulations. Multi-National Companies: Industry Classification Schemes As companies grow and expand across geographies, a typical challenge they encounter with reference data represents reconciling various versions of industry classification schemes in use across nations. While the United States, Mexico and Canada conform to the North American Industry Classification System (NAICS) standard, European Union countries choose different variants of the NACE industry classification scheme. Multi-national companies must manage the individual national NACE schemes and reconcile the differences across countries. Enterprises must invest in a reference data change management application to address the challenge of distributing reference data changes to downstream applications and assess which applications were impacted by a given change. References 1 Master Data versus Reference Data, Malcolm Chisholm, April 1, 2006.

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  • Buck Woody in Adelaide via LiveMeeting

    - by Rob Farley
    The URL for attendees is https://www.livemeeting.com/cc/usergroups/join?id=ADL1005&role=attend . This meeting is with Buck Woody . If you don’t know who he is, then you ought to find out! He’s a Program Manager at Microsoft on the SQL Server team, and anything else I try to say about him will not do him justice. So it’s great to have him present to the Adelaide SQL Server User Group this week. The talk is on the topic of Data-Tier Applications (new in SQL 2008 R2), and I’m sure it will be a great...(read more)

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  • June Edition - Oracle Database Insider

    - by jgelhaus
    Now available.  The June edition of the Oracle Database Insider includes: NEWS June 10: Oracle CEO Larry Ellison Live on the Future of Database Performance At a live webcast on June 10 at Oracle’s headquarters, Oracle CEO Larry Ellison is expected to announce the upcoming availability of Oracle Database In-Memory, which dramatically accelerates business decision-making by processing analytical queries in memory without requiring any changes to existing applications. Read More New Study Confirms Capital Expenditure Savings with Oracle Multitenant A new study finds that Oracle Multitenant, an option of Oracle Database 12c, drives significant savings in capital expenditures by enabling the consolidation of a large number of databases on the same number or fewer hardware resources. Read More VIDEO Oracle Database 12c: Multitenant Environment with Tom Kyte Tom Kyte discusses Oracle Multitenant, followed by a demo of the multitenant architecture that includes moving a pluggable database (PDB) from one multitenant container database to another, cloning a PDB, and creating a new PDB.  and much more.

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  • How to design database having multiple interrelated entities

    - by Sharath Chandra
    I am designing a new system which is more of a help system for core applications in banks or healthcare sector. Given the nature of the system this is not a heavy transaction oriented system but more of read intensive. Now within this application I have multiple entities which are related to each other. For e.g. Assume the following entities in the system User Training Regulations Now each of these entities have M:N Relationship with each other. Assuming the usage of a standard RDBMS, the design may involve many relationship tables each containing the relationships one other entity ("User_Training", "User_Regulations", "Training_Regulations"). This design is limiting since I have more than 3 entities in the system and maintaining the relationship graph is difficult this way. The most frequently used operation is "given an entity get me all the related entities" . I need to design the database where this operation is relatively inexpensive. What are the different recommendations for modelling this kind of database.

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  • Wirenet : découverte du premier trojan Linux/Mac OS X interplateforme de vol de mot de passe

    Wirenet : le premier trojan Linux/Mac OS X interplateforme De vol de mot de passe Doctor Web, l'éditeur russe d'antivirus, a annoncé l'émergence du premier Trojan Linux/OSX interplateforme de vol de mot de passe. Par l'utilisation d'un backdoor, le malware au nom de code BackDoor.Wirenet.1 arrive à transporter les données de l'utilisateur vers un serveur de contrôle situé à l'adresse 212.7.208.65. Les données récoltées comportent les touches de claviers tapées à l'image d'un keylogger et les mots de passe des utilisateurs enregistrés dans les navigateurs Opera, Firefox, Chrome et Chromium et dans les applications Thunderbird, SeaMonkey et Pidgin. L'AES (Advanced Encryption...

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  • How to Achieve Real-Time Data Protection and Availabilty....For Real

    - by JoeMeeks
    There is a class of business and mission critical applications where downtime or data loss have substantial negative impact on revenue, customer service, reputation, cost, etc. Because the Oracle Database is used extensively to provide reliable performance and availability for this class of application, it also provides an integrated set of capabilities for real-time data protection and availability. Active Data Guard, depicted in the figure below, is the cornerstone for accomplishing these objectives because it provides the absolute best real-time data protection and availability for the Oracle Database. This is a bold statement, but it is supported by the facts. It isn’t so much that alternative solutions are bad, it’s just that their architectures prevent them from achieving the same levels of data protection, availability, simplicity, and asset utilization provided by Active Data Guard. Let’s explore further. Backups are the most popular method used to protect data and are an essential best practice for every database. Not surprisingly, Oracle Recovery Manager (RMAN) is one of the most commonly used features of the Oracle Database. But comparing Active Data Guard to backups is like comparing apples to motorcycles. Active Data Guard uses a hot (open read-only), synchronized copy of the production database to provide real-time data protection and HA. In contrast, a restore from backup takes time and often has many moving parts - people, processes, software and systems – that can create a level of uncertainty during an outage that critical applications can’t afford. This is why backups play a secondary role for your most critical databases by complementing real-time solutions that can provide both data protection and availability. Before Data Guard, enterprises used storage remote-mirroring for real-time data protection and availability. Remote-mirroring is a sophisticated storage technology promoted as a generic infrastructure solution that makes a simple promise – whatever is written to a primary volume will also be written to the mirrored volume at a remote site. Keeping this promise is also what causes data loss and downtime when the data written to primary volumes is corrupt – the same corruption is faithfully mirrored to the remote volume making both copies unusable. This happens because remote-mirroring is a generic process. It has no  intrinsic knowledge of Oracle data structures to enable advanced protection, nor can it perform independent Oracle validation BEFORE changes are applied to the remote copy. There is also nothing to prevent human error (e.g. a storage admin accidentally deleting critical files) from also impacting the remote mirrored copy. Remote-mirroring tricks users by creating a false impression that there are two separate copies of the Oracle Database. In truth; while remote-mirroring maintains two copies of the data on different volumes, both are part of a single closely coupled system. Not only will remote-mirroring propagate corruptions and administrative errors, but the changes applied to the mirrored volume are a result of the same Oracle code path that applied the change to the source volume. There is no isolation, either from a storage mirroring perspective or from an Oracle software perspective.  Bottom line, storage remote-mirroring lacks both the smarts and isolation level necessary to provide true data protection. Active Data Guard offers much more than storage remote-mirroring when your objective is protecting your enterprise from downtime and data loss. Like remote-mirroring, an Active Data Guard replica is an exact block for block copy of the primary. Unlike remote-mirroring, an Active Data Guard replica is NOT a tightly coupled copy of the source volumes - it is a completely independent Oracle Database. Active Data Guard’s inherent knowledge of Oracle data block and redo structures enables a separate Oracle Database using a different Oracle code path than the primary to use the full complement of Oracle data validation methods before changes are applied to the synchronized copy. These include: physical check sum, logical intra-block checking, lost write validation, and automatic block repair. The figure below illustrates the stark difference between the knowledge that remote-mirroring can discern from an Oracle data block and what Active Data Guard can discern. An Active Data Guard standby also provides a range of additional services enabled by the fact that it is a running Oracle Database - not just a mirrored copy of data files. An Active Data Guard standby database can be open read-only while it is synchronizing with the primary. This enables read-only workloads to be offloaded from the primary system and run on the active standby - boosting performance by utilizing all assets. An Active Data Guard standby can also be used to implement many types of system and database maintenance in rolling fashion. Maintenance and upgrades are first implemented on the standby while production runs unaffected at the primary. After the primary and standby are synchronized and all changes have been validated, the production workload is quickly switched to the standby. The only downtime is the time required for user connections to transfer from one system to the next. These capabilities further expand the expectations of availability offered by a data protection solution beyond what is possible to do using storage remote-mirroring. So don’t be fooled by appearances.  Storage remote-mirroring and Active Data Guard replication may look similar on the surface - but the devil is in the details. Only Active Data Guard has the smarts, the isolation, and the simplicity, to provide the best data protection and availability for the Oracle Database. Stay tuned for future blog posts that dive into the many differences between storage remote-mirroring and Active Data Guard along the dimensions of data protection, data availability, cost, asset utilization and return on investment. For additional information on Active Data Guard, see: Active Data Guard Technical White Paper Active Data Guard vs Storage Remote-Mirroring Active Data Guard Home Page on the Oracle Technology Network

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  • How to use RDP protocol in Remote Desktop Viewer?

    - by drgrog
    I am using a Natty Live-USB, and the Remote Desktop Viewer application (Applications - Internet - Remote Desktop Viewer) only shows SSH & VNC protocols. How can I include RDP in the list, in order to connect to existing Windows Remote Desktop sessions on Windows XP machines. I am aware that I can use the gnome-rdp application, or even rdesktop hostname from a terminal, but I would like to create a persistent LiveUSB that uses Remote Desktop Viewer to connect to Windows RDP (port 3389). I do not want to set up VNC, TeamViewer or any others, as these do not solve my problem due to the fact they need additional software on the remote hosts.

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  • Recorded YouTube-like presentation and "live" demos of Oracle Advanced Analytics

    - by chberger
    Ever want to just sit and watch a YouTube-like presentation and "live" demos of Oracle Advanced Analytics?  Then ' target=""click here! This 1+ hour long session focuses primarily on the Oracle Data Mining component of the Oracle Advanced Analytics Option and is tied to the Oracle SQL Developer Days virtual and onsite events.   I cover: Big Data + Big Data Analytics Competing on analytics & value proposition What is data mining? Typical use cases Oracle Data Mining high performance in-database SQL based data mining functions Exadata "smart scan" scoring Oracle Data Miner GUI (an Extension that ships with SQL Developer) Oracle Business Intelligence EE + Oracle Data Mining resutls/predictions in dashboards Applications "powered by Oracle Data Mining for factory installed predictive analytics methodologies Oracle R Enterprise Please contact [email protected] should you have any questions.  Hope you enjoy!  Charlie Berger, Sr. Director of Product Management, Oracle Data Mining & Advanced Analytics, Oracle Corporation

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