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311-019 Sun Certified Associate for Java 2 Platform, gauge Edition

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311-019 exam Dumps Source : Sun Certified Associate for Java 2 Platform, gauge Edition

Test Code : 311-019
Test cognomen : Sun Certified Associate for Java 2 Platform, gauge Edition
Vendor cognomen : SUN
braindumps : 204 true Questions

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SUN Sun Certified Associate for

Wild Coast solar achieves first-in-Africa web Zero consume certification | killexams.com true Questions and Pass4sure dumps

solar international's Wild Coast solar has done Africa's first net Zero consume rating from the eco-friendly building Council of South Africa (GBCSA).

Wild Coast Sun achieves first-in-Africa Net Zero  consume certification

"we're delighted that the boom and innovation coming out of the property sector via initiatives just fancy the Wild Coast sun net Zero consume certification proves to the rest of the world that they can certainly residence sustainability and environmental concerns at the heart of how they design, build, and operate superior, greener structures and precincts - congratulations to solar overseas for demonstrating fabulous environmental leadership," mentioned Manfred Braune, GBCSA managing govt: sector building and transformation, following the announcement.

As a allotment of their sustainability adventure, solar international has embarked on an aggressive Zero-Waste-to-Landfill initiative to exist achieved by using the conclusion of 2020 at everyone its South African units. Wild Coast sun is the first unit within the neighborhood to achieve this goal. Jennifer van Niekerk of GCX, the accredited expert who conducted the web Zero Certification explained, "The Wild Coast solar’s consume administration strategy contains the composting of organic consume onsite, recycling of recyclables by passage of skill of accepted recyclers, donation and resale of reusable items and the manufacturing of bricks from non-effective non-recyclable waste."

Brick manufacturing and recycling is performed offsite with the guidance of a consume contractor, youngsters wide measures were residence in region to prick back, reuse, part and deal with 70% of the consume produced on site.

"Our zero consume to landfill mission is only one of many initiatives they are implementing. The triple profit of decreasing and converting consume into a valuable resource is that they achieve their commitment to exist environmentally in charge, they aid the indigenous economy via job advent, and they minimise the accommodate an upshot on on their bottom line. I summon that a win-win-win situation," added head of sustainability at solar outlandish Jannette Horn.

Green buildings must  conclude more to fix their climate emergency

eco-friendly constructions accommodate to conclude greater to fix their local weather emergency

After greater than three a long time of talk concerning the scholarship of constructing green, now they accommodate nevertheless didn't exchange the passage they design and assemble structures...

Meg Holden and Rebecca Holt 6 Feb 2019

As an fundamental step in the success of their zero consume to landfill solution, the Wild Coast solar has positioned tremendous accent on the separation of biological consume at supply in everyone its personal kitchens. It has supported, informed and helped better a full-time enterprise to purge organic consume from the kitchens and character the consume to accumulate rid of everyone contaminants via hand. a different commercial enterprise, also educated and assisted by passage of the Wild Coast sun, then composts the organic consume and makes spend of it in an onsite vegetable garden, the capitulate from which is offered back to the inn for spend within the kitchens. An extra requirement of the certification, the Wild Coast sun had been required to fill right here standards: residence into upshot onsite consume recycling, habits uninterested consume stride audits of ongoing consumables and accommodate an updated operational consume and materials management plan.

"Waste may soundless not exist considered as whatever thing to exist disposed and as a value - it is going to exist viewed as a aid. Landfill websites are filling up, and they accommodate to prepare for a complete shift in considering around waste. it's a no brainer that eco-friendly building, including consume minimisation and reuse, isn't any longer a lofty finest on the continent and the leisure of the realm, they will now note the tangible merits which are tied to sustainability from an African context and the proven fact that inside a number of years the South African business anticipates that they are going to accommodate a a wonderful deal higher degree of eco-friendly constructing endeavor is captivating," talked about Braune.


sun Certification and certificate software Overviews | killexams.com true Questions and Pass4sure dumps

The classes included in Java programming certificates courses are essentially technical and vocational classes with petite to no widely wide-spread education necessities. Some unavoidable examples of classes included in such programs consist of:

  • Introduction to programming
  • Java programming
  • Object-oriented design
  • Java design patterns
  • Unified modeling language
  • Java ME for mobile contraptions
  • Employment Outlook sand profits information

    From 2014-2024, computer programmers had been projected to peer an 8% decline in employment opportunities, pointed out the U.S. Bureau of Labor records. The intimate wages of desktop programmers accommodate been $eighty four,360 in may additionally 2015.

    continuing education and Certification

    The solar Microsystems subsidiary of the Oracle corporation is the only entity to present solar certifications (www.sun.com). youngsters the enterprise offers a yoke of various kinds of certifications, one of the vital gauge kinds is the sun licensed Java Programmer (SCJP). Most college students who finished a certificate software in Java programming are eligible to sit for the SCJP examination. The assessments are offered at numerous testing websites around the country.

    grasp's degree classes are also obtainable for graduates with solar certification, including the grasp of Science (M.S.) in software Engineering, M.S. in laptop counsel techniques or M.S. in guidance methods. These programs can prepare IT authorities for career evolution or extra anatomize in a linked container.

    college students drawn to Java programming can subscribe to a solar certification software to exist extra marketable or expert as a laptop programmer. master's diploma programs and other styles of certifications can exist institute as well.


    Cisco is leading the style for Wi-sun interoperability | killexams.com true Questions and Pass4sure dumps

    Utilities had been sluggish to undertake IoT networking as a result of long better cycles and interoperability complexities throughout dissimilar purposes with differing network wants. Yet, more and more, they hear their utility purchasers emphasize the deserve to simplify and uphold enormous-scale outdoor networks that address an array of solutions from prudent metering and distribution automation, to demand response and renewable power integration.

    At DistribuTECH, they shared how Cisco’s continuing innovation is meeting this challenge. They showcased their replete portfolio of utility trade options that consist of Cisco Resilient Mesh and their FAN routers, aim-developed to enhance interoperability. And they introduced that Cisco is the primary to obtain Wi-sun realm zone community (FAN) 1.0 interoperability certification for their IR509 Cisco Resilient Mesh industrial router.

    Why is interoperability so vital? Let’s purchase a glance.

    The problem of interoperability

    usually, utilities and prudent cities ought to fulfill a variety of networking spend situations, with options from various vendors, managed through different operations agencies and even conclusion valued clientele. as an instance, an influence utility might also spend smart grid, superior Metering Infrastructure (AMI) and Distribution Automation (DA) networks. Interoperability becomes much more critical in the event that they should integrate distributed energy supplies (DER), which may comprehend options where they don’t accommodate direct handle, corresponding to domestic photo voltaic, electric automobile charging stations, or prudent highway lighting.

    First era sensible grid AMI and DA networks commonly used proprietary mesh networking technologies, partly IP-enabled and the spend of proprietary security protocols. but that continually meant security turned into much less scrutinized, much less strong, and can accommodate had unknown vulnerabilities. devoid of enough interoperability, utilities had been compelled to first choose a community infrastructure dealer, and then require everyone of their grid machine companies (e.g., for line sensors, meters, cap bank controllers) to combine/certify communication modules from that network dealer.

    The upshot is a really inefficient, time- and value-intensive process for every person involved. A utility usually has to wait a very long time except the integration and realm compliance is completed for everyone of the grid instruments earlier than they could deploy and spend the network effectively. in the meantime, they could continue to elope diverse networks every with different verbal exchange applied sciences for distinctive functions (e.g., line sensor vs. volt-var handle) and continue to contend with immoderate renovation can charge, complexity, and fragility of their methods.

    Cisco IoT solutions purpose to reduce interoperability complexities with intent-based mostly networking, and abet speed implementation through bringing companions together via their IoT DevNet software.

    constructing cozy and legitimate interoperability

    while protection and reliability are accurate of intellect for their utility clients, interoperability tends to purchase a lower back seat in conversations. Yet interoperability is vital for persisted boom in IoT – and that’s the residence they are available in. Cisco is leading the pack with their IR509 router, the primary with Wi-sun FAN 1.0 interoperability certification.

    Wi-sun FAN 1.0 offers for basic interoperability of instruments for network discovery, association, authentication, key exchange and rotation, encryption, RPL routing, and IPv6 address task. Wi-solar compliance is gaining consideration, and that has both network companies and gadget companies scrambling to accumulate certified. With utilities enabling prudent metropolis infrastructures fancy street lights, EV charging, and sensible parking, a army of vendors and purposes are converging on the equal community, making wider adoption of Wi-sun inevitable.

    meanwhile, as Wi-solar is evolving toward FAN 2.0 necessities, Cisco is preserving tempo to exist in a position. We’re continuing to toil on advanced aspects such as time distribution, adaptive information expense and modulation, peer-to-peer verbal exchange, QoS and comfy certificate re-enrollment.

    Interoperability is a critical component in attaining IoT success – and we’ll accumulate you there.

    additional elements

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    Appeal Virtual Machines JRockit Achieves Java Technology Compatibility and Begins Shipping to Customers | killexams.com true questions and Pass4sure dumps

    November 20, 2001 05:52 ET | Source: Appeal Virtual Machines

    SAN MATEO, Calif., Nov. 20, 2001 (PRIMEZONE) -- Appeal Virtual Machines, a technology leader in producing manageable, elevated performance virtual machines for the Java(TM) platform, today announced that it has achieved replete Java 2 Platform, gauge Edition (J2SE(TM)) compatibility for the company's JRockit product for the Windows2000/NT operating systems. beginning with release 3.0, which is shipping today, the JRockit products are certified 100% Java compatible. replete compatibility for JRockit gives companies the choice to select a Java virtual machine that can exist integrated, optimized and independently configured and managed for their unique operating environment.

    The JRockit 3.0 version available today also has significant functional enhancements including significant improvements for multiprocessor environments. JRockit 3.0 also introduces a unique management console for the virtual machine for Java technology. This is a novel feature which allows companies running the Java technology to monitor and manage the performance of the virtual machine and the Java application running with it. Administrators can view the operating characteristics of the virtual machine and the Java application and can exist automatically notified of changes in resource availability or changes in operating characteristics as they occur. Based on this information administrators can identify bottlenecks in performance and change operating and environmental parameters to optimize performance and availability.

    "Appeal is very pleased to exist designated Java compatible for Windows 2000/NT," said Dave Parker, CEO, Appeal Virtual Machines. "Appeal's unique value is empowering higher performance Java solutions for customers. Delivering a manageable, tunable, 100% compatible virtual machine for Java technology improves customer's control over their Java environments and increases productivity of everyone Java related resources."

    "As a member of the Java Community Process(SM) program, Appeal has contributed toward the broad adoption and spend of the Java 2 Platform, gauge Edition," said Bill Pataky, Group Product Marketing Manager, Sun Microsystems. "With the completion of the J2SE compatibility requirements, they ogle forward to the delivery of Appeal products that will enhance the manageability and productivity of customers' Java applications."

    The specifications for J2SE define the gauge for developing multi-tier enterprise applications. JRockit is designed and optimized for the demands of server side execution of Java based applications, including multi-user scalability, selectable non-disruptive garbage collectors, uphold for multiprocessors, and the capacity to monitor and manage the execution of Java applications. Sun's JCK certification requires that products pass a comprehensive succession of approximately 5000 compatibility tests.

    About Appeal Virtual Machines

    Appeal Virtual Machines has offices in Stockholm, Stuttgart and San Mateo California. Appeal's JRockit product line is a family of superior virtual machines for Java, providing customers and partners with manageable, elevated performance Java operating environments. JRockit is a line of products available for Solaris, Linux and Windows NT/2000 operating systems. The company was founded in 1998. Visit Appeal at www.jrockit.com for more information, benchmarks and a free trial license.

    Sun, Sun Microsystems, the Sun logo, Java, J2SE, Java Community Process, and The Network Is The Computer are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries.

    Appeal Public Relations, San Mateo 408 832 5244 Appeal Public Relations, Stockholm +46 (0)70 710 62 83

    Stockholm, SWEDEN

    Appeal Public Relations, San Mateo 408 832 5244 Appeal Public Relations, Stockholm +46 (0)70 710 62 83

    Introducing Android | killexams.com true questions and Pass4sure dumps

    This chapter explains what Android is, how and why it was developed, and where the platform fits in to the established mobile marketplace.

    This chapter is from the bespeak 

    The mobile evolution community is at a tipping point. Mobile users demand more choice, more opportunities to customize their phones, and more functionality. Mobile operators want to provide value-added content to their subscribers in a manageable and lucrative way. Mobile developers want the liberty to develop the powerful mobile applications users demand with minimal roadblocks to success. Finally, handset manufacturers want a stable, secure, and affordable platform to power their devices. Upuntil now unique mobile platform has adequately addressed the needs of everyone the parties.

    Enter Android, which is a potential game-changer for the mobile evolution community. An innovative and open platform, Android is well positioned to address the growing needs of the mobile marketplace.

    This chapter explains what Android is, how and why it was developed, and where the platform fits in to the established mobile marketplace.

    To understand what makes Android so compelling, they must examine how mobile evolution has evolved and how Android differs from competing platforms.

    Way Back When

    Remember passage back when a phone was just a phone? When they relied on fixed landlines? When they ran for the phone instead of pulling it out of their pocket? When they lost their friends at a crowded ballgame and waited around for hours hoping to reunite? When they forgot the grocery list (Figure 1.1) and had to find a payphone or drive back home again?

    Figure 1.1

    Figure 1.1 Mobile phones accommodate become a crucial shopping accessory.

    Those days are long gone. Today, commonplace problems fancy these are easily solved with a one-button speed dial or a simple text message fancy “WRU?” or “20?” or “Milk and?”

    Our mobile phones sustain us safe and connected. Nowadays, they roam around freely, relying on their phones not only to sustain in paw with friends, family, and coworkers, but also to relate us where to go, what to do, and how to conclude it. Even the most domestic of events look to revolve around my mobile phone.

    Consider the following true, but slightly enhanced for effect, story:

  • Once upon a time, on a warm summer evening, I was happily minding my own business cooking dinner in my novel house in rustic novel Hampshire when a bat swooped over my head, scaring me to death.
  • The first thing I did—while ducking—was haul out my cell and forward a text message to my husband, who was across the country at the time: “There’s a bat in the house!”
  • My husband did not immediately respond (a divorce-worthy incident, I thought at the time), so I called my Dad and asked him for suggestions on how to accumulate rid of the bat.
  • He just laughed.
  • Annoyed, I snapped a picture of the bat with my phone and sent it to my husband and my blog, simultaneously guilt-tripping him and informing the world of my treacherous domestic wildlife encounter.
  • Finally, I Googled “get rid of a bat” and followed the helpful do-it-yourself instructions provided on the Web for people in my situation. I also erudite that late August is when baby bats often leave the roost for the first time and learn to fly. Newly sensible that I had a baby bat on my hands, I calmly got a broom and managed to herd the bat out of the house.
  • Problem solved—and I did it everyone with the abet of my trusty cell phone, the obsolete LG VX9800.
  • My point here? Mobile phones can unravel just about anything—and they reckon on them for everything these days.

    You notice that I used half a dozen different mobile applications over the course of this story. Each application was developed by a different company and had a different user interface. Some were well designed; others not so much. I paid for some of the applications, and others came on my phone.

    As a user, I institute the undergo functional, but not terribly inspiring. As a mobile developer, I wished for an opening to create a more seamless and powerful application that could ply everyone I’d done and more. I wanted to build a better bat trap, if you will.

    Before Android, mobile developers faced many roadblocks when it came to writing applications. building the better application, the unique application, the competing application, the hybrid application, and incorporating many common tasks such as messaging and calling in a confidential passage were often unrealistic goals.

    To understand why, let’s purchase a brief ogle at the history of mobile software development.

    “The Brick”

    The Motorola DynaTAC 8000X was the first commercially available cell phone. First marketed in 1983, it was 13 x 1.75 x 3.5 inches in dimension, weighed about 2.5 pounds, and allowed you to talk for a petite more than half an hour. It retailed for $3,995, plus hefty monthly service fees and per-minute charges.

    We called it “The Brick,” and the nickname stuck for many of those early mobile phones they alternatively loved and hated. About the size of a brick, with a battery power just long enough for half a conversation, these early mobile handsets were mostly seen in the hands of traveling business execs, security personnel, and the wealthy. First-generation mobile phones were just too expensive. The service charges alone would bankrupt the uninterested person, especially when roaming.

    Early mobile phones were not particularly replete featured. (Although, even the Motorola DynaTAC, shown in motif 1.2, had many of the buttons we’ve arrive to know well, such as the SEND, END, and CLR buttons.) These early phones did petite more than obtain and receive calls and, if you were lucky, there was a simple contacts application that wasn’t impossible to use.

    Figure 1.2

    Figure 1.2 The first commercially available mobile phone: the Motorala DynaTAC.

    These first-generation mobile phones were designed and developed by the handset manufacturers. Competition was fierce and trade secrets were closely guarded. Manufacturers didn’t want to expose the internal workings of their handsets, so they usually developed the phone software in-house. As a developer, if you weren’t allotment of this inner circle, you had no opening to write applications for the phones.

    It was during this era that they saw the first “time-waster” games start to appear. Nokia was well-known for putting the 1970s video game Snake on some of its earliest monochrome phones. Other manufacturers followed, adding games fancy Pong, Tetris, and Tic-Tac-Toe.

    These early phones were flawed, but they did something important—they changed the passage people thought about communication. As mobile phone prices dropped, batteries improved, and reception areas grew, more and more people began carrying these handy devices. Soon mobile phones were more than just a novelty.

    Customers began pushing for more features and more games. But, there was a problem. The handset manufacturers didn’t accommodate the motivation or the resources to build every application users wanted. They needed some passage to provide a portal for entertainment and information services without allowing direct access to the handset.

    And what better passage to provide these services than the Internet?

    Wireless Application Protocol (WAP)

    It turned out allowing direct phone access to the Internet didn’t scale well for mobile.

    By this time, professional Web sites were replete color and chock replete of text, images, and other sorts of media. These sites relied on JavaScript, Flash, and other technologies to enhance the user undergo and were often designed with a target resolution of 800×600 pixels and higher.

    When the first clamshell phone, the Motorola StarTAC, was released in 1996, it merely had a LCD 10-digit segmented display. (Later models would add a dot-matrix character display.) Meanwhile, Nokia released one of the first slider phones, the 8110—fondly referred to as “The Matrix Phone,” as the phone was heavily used in films. The 8110 could display four lines of text with 13 characters per line. motif 1.3 shows some of the common phone profile factors.

    Figure 1.3

    Figure 1.3 Various mobile phone profile factors: the candy bar, the slider, and the clamshell.

    With their postage stamp-sized low-resolution screens and limited storage and processing power, these phones couldn’t ply the data-intensive operations required by traditional Web browsers. The bandwidth requirements for data transmission were also costly to the user.

    The Wireless Application Protocol (WAP) gauge emerged to address these concerns. Simply put, WAP was a stripped-down version of HTTP, which is the backbone protocol of the Internet. Unlike traditional Web browsers, WAP browsers were designed to elope within the recollection and bandwidth constraints of the phone. Third-party WAP sites served up pages written in a markup language called Wireless Markup Language (WML). These pages were then displayed on the phone’s WAP browser. Users navigated as they would on the Web, but the pages were much simpler in design.

    The WAP solution was considerable for handset manufacturers. The pressure was off—they could write one WAP browser to ship with the handset and reckon on developers to arrive up with the content users wanted.

    The WAP solution was considerable for mobile operators. They could provide a custom WAP portal, directing their subscribers to the content they wanted to provide, and rake in the data charges associated with browsing, which were often high.

    Developers and content providers didn’t deliver. For the first time, developers had a casual to develop content for phone users, and some did so, with limited success.

    Most of the early WAP sites were extensions of Popular branded Web sites, such as CNN.com and ESPN.com, looking for novel ways to extend their readership. Suddenly phone users accessed the news, stock market quotes, and sports scores on their phones.

    Commercializing WAP applications was difficult, and there was no built-in billing mechanism. Some of the most Popular commercial WAP applications that emerged during this time were simple wallpaper and ringtone catalogues, allowing users to personalize their phones for the first time. For example, the users browsed a WAP site and requested a specific item. They filled out a simple order profile with their phone number and their handset model. It was up to the content provider to deliver an image or audio file compatible with the given phone. Payment and verification were handled through various premium-priced delivery mechanisms such as Short Message Service (SMS), Enhanced Messaging Service (EMS), Multimedia Messaging Service (MMS), and WAP Push.

    WAP browsers, especially in the early days, were late and frustrating. Typing long URLs with the numeric keypad was onerous. WAP pages were often difficult to navigate. Most WAP sites were written once for everyone phones and did not account for individual phone specifications. It didn’t matter if the end-user’s phone had a huge color screen or a postage stamp-sized monochrome one; the developer couldn’t tailor the user’s experience. The result was a mediocre and not very compelling undergo for everyone involved.

    Content providers often didn’t bother with a WAP site and instead just advertised SMS short codes on TV and in magazines. In this case, the user sent a premium SMS message with a request for a specific wallpaper or ringtone, and the content provider sent it back. Mobile operators generally liked these delivery mechanisms because they received a large portion of each messaging fee.

    WAP fell short of commercial expectations. In some markets, such as Japan, it flourished, whereas in others, fancy the United States, it failed to purchase off. Handset screens were too petite for surfing. Reading a sentence fragment at a time, and then waiting seconds for the next segment to download, ruined the user experience, especially because every second of downloading was often charged to the user. Critics began to summon WAP “Wait and Pay.”

    Finally, the mobile operators who provided the WAP portal (the default home page loaded when you started your WAP browser) often restricted which WAP sites were accessible. The portal allowed the operator to restrict the number of sites users could browse and to funnel subscribers to the operator’s preferred content providers and exclude competing sites. This kindhearted of walled garden approach further discouraged third-party developers, who already faced difficulties in monetizing applications, from writing applications.

    Proprietary Mobile Platforms

    It came as no dumbfound when users wanted more—they will always want more.

    Writing robust applications such as graphic-intensive video games with WAP was nearly impossible. The 18-year-old to 25-year-old sweet-spot demographic—the kids with the disposable income most likely to personalize their phones with wallpapers and ringtones—looked at their portable gaming systems and asked for a device that was both a phone and a gaming device or a phone and a music player. They argued that if devices such as Nintendo’s Game Boy could provide hours of entertainment with only five buttons, why not just add phone capabilities? Others looked to their digital cameras, Palms, Blackberries, iPods, and even their laptops and asked the selfsame question. The market seemed to exist teetering on the edge of device convergence.

    Memory was getting cheaper; batteries were getting better; and PDAs and other embedded devices were beginning to elope compact versions of common operating systems such as Linux and Windows. The traditional desktop application developer was suddenly a player in the embedded device market, especially with Smartphone technologies such as Windows Mobile, which they institute familiar.

    Handset manufacturers realized that if they wanted to continue to sell traditional handsets, they needed to change their protectionist policies pertaining to handset design and expose their internal frameworks, at least, to some extent.

    A variety of different proprietary platforms emerged—and developers are soundless actively creating applications for them. Some Smartphone devices ran Palm OS (now Garnet OS) and RIM Blackberry OS. Sun Microsystems took its Popular Java platform and J2ME emerged (now known as Java Micro Edition [Java ME]). Chipset maker Qualcomm developed and licensed its Binary Runtime Environment for Wireless (BREW). Other platforms, such as Symbian OS, were developed by handset manufacturers such as Nokia, Sony Ericsson, Motorola, and Samsung. The Apple iPhone OS (OS X iPhone) joined the ranks in 2008. motif 1.4 shows several different phones, everyone of which accommodate different evolution platforms.

    Figure 1.4

    Figure 1.4 Phones from various mobile device platforms.

    Many of these platforms accommodate associated developer programs. These programs sustain the developer communities small, vetted, and under contractual agreements on what they can and cannot do. These programs are often required and developers must pay for them.

    Each platform has benefits and drawbacks. Of course, developers care for to debate over which platform is “the best.” (Hint: It’s usually the platform we’re currently developing for.)

    The verity is no one platform has emerged victorious. Some platforms are best suited for commercializing games and making millions—if your company has brand backing. Other platforms are more open and suitable for the hobbyist or upright market applications. No mobile platform is best suited for everyone possible applications. As a result, the mobile phone has become increasingly fragmented, with everyone platforms sharing allotment of the pie.

    For manufacturers and mobile operators, handset product lines became complicated fast. Platform market penetration varies greatly by region and user demographic. Instead of choosing just one platform, manufacturers and operators accommodate been forced to sell phones for everyone the different platforms to compete. We’ve even seen some handsets supporting multiple platforms. (For instance, Symbian phones often also uphold J2ME.)

    The mobile developer community has become as fragmented as the market. It’s nearly impossible to sustain track of everyone the changes in the market. Developer specialty niches accommodate formed. The platform evolution requirements vary greatly. Mobile software developers toil with distinctly different programming environments, different tools, and different programming languages. Porting among the platforms is often costly and not straightforward. Keeping track of handset configurations and testing requirements, signing and certification programs, carrier relationships, and application marketplaces accommodate become complicated spin-off businesses of their own.

    It’s a nightmare for the ACME Company wanting a mobile application. Should they develop a J2ME application? BREW? iPhone? Windows Mobile? Everyone has a different kindhearted of phone. ACME is forced to choose one or, worse, everyone of the above. Some platforms allow for free applications, whereas others conclude not. upright market application opportunities are limited and expensive.

    As a result, many wonderful applications accommodate not reached their desired users, and many other considerable ideas accommodate not been developed at all.


    Oracle vs. SQL Server: Why Oracle wins | killexams.com true questions and Pass4sure dumps

    Here is a brief comparison between Oracle 9i and SQL Server 2000. In my view, Oracle comes out ahead in this c...

    omparison.

    Platform dependency

    SQL Server is only operable on the Windows platform, a major limitation for it to exist an enterprise solution. Oracle is available on multiple platforms such as Windows, everyone flavors of Unix from vendors such as IBM, Sun, Digital, HP, Sequent, etc. and VAX-VMS, as well as MVS. The multi-platform nature of Oracle makes it a just enterprise solution.

    Locking and concurrency

    SQL Server has no multi-version consistency model, which means that "writers obscure readers and readers obscure writers" to ensure data integrity. In contrast, with Oracle, the rule is "readers don't obscure writers and writers don't obscure readers." This is possible without compromising data integrity because Oracle will dynamically re-create a read-consistent image for a reader of any requested data that has been changed but not yet committed. In other words, the reader will note the data as it was before the writer began changing it (until the writer commits). SQL Server's locking scheme is much simpler (less mature) and will result in a lot of delays/waits in a ponderous OLTP environment.

    Also, SQL Server will escalate row locks to page flat locks when too many rows on a page are locked. This locks rows which are uninvolved in any updates for no wonderful reason.

    Performance and tuning

  • In SQL Server, the DBA has no "real" control over sorting and cache recollection allocation. The recollection allocation is decided only globally in the server properties recollection folder, and that applies for everyone recollection and not CACHING, SORTING, etc.
  • All pages (blocks) are always 8k and everyone extents are always 8 pages (64k). This means you accommodate no passage to specify larger extents to ensure contiguous space for large objects.
  • No attain partioning of large tables and indexes. In Oracle, a large 100 GB table can exist seamlessly partitioned at the database flat into attain partitions. For example, an invoice table can exist partitioned into monthly partitions. Such partitioned tables and partitioned indexes give performance and maintenance benefits and are transparent to the application.
  • There is no partitioning in SQL Server.
  • There are no bitmap indexes in SQL Server.
  • There are no reverse key indexes in SQL Server.
  • There are no function-based indexes in SQL Server.
  • There is no star query optimization in SQL Server.
  • Object types

    Here are some expostulate types missing in SQL Server that exist in Oracle.

  • You cannot declare public or private synonyms.
  • There is no such thing as independent sequence objects.
  • There are no packages; i.e., collections of procedures and functions.
  • No "before" event triggers (only "after" event triggers) and no row triggers (only statement).
  • No expostulate types fancy in PL/SQL.
  • PL/SQL versus T-SQL

  • In T-SQL there are significant extensions to the ANSI SQL-92 gauge which means converting applications to a different database later will exist a code challenge re-write. The INNER JOIN, LEFT OUTER, right OUTER associate syntax differs from the classic JOIN.
  • No Java database engine as in Oracle.
  • Stored procedures in SQL Server are not compiled until executed (which means overhead, late binding and finding errors at execution time only!).
  • No capacity to read/write from external files from a stored procedure.
  • PL/SQL has many DBMS system packages, where T-SQL relies only on a limited number of extended and system stored procedures in the master database.
  • PL/SQL is better in oversight exception handling, and there is no such thing as exceptions in T-SQL (T-SQL uses @@error -- not elegant!).
  • T-SQL does not accommodate the MINUS operator, that makes finding schema differences more difficult in SQL Server.
  • In SQL Server there is no "dead connection detection". Clients who lose their connection may soundless hold locks until a DBA is notified to murder their server side processes.
  • In SQL Server there is no such thing as SQL*NET aliases/service names! This means applications accommodate to arduous code the actual server cognomen into their apps, making it difficult to stride databases later to load balance across servers.
  • Clustering technology

    In clustering technology, Oracle is light years ahead, since SQL Server has nothing fancy Oracle Parallel Server/RAC -- two instances acting on the selfsame data in active-active configurations. And with the novel version of Parallel Server in Oracle 9i, renamed as the Oracle true Application Clusters, there is diskless contention handling of read-read, read-write, write-read, and write-write contention between the instances. This diskless contention handling is called Cache Fusion, and it means for the first time, any application can exist placed in a cluster without any changes, and it scales upwards by just adding another machine to the cluster. Microsoft has nothing fancy this.

    Reliability

  • In SQL Server gauge Edition there is no capacity to mirror the transaction log files. In Enterprise Edition there is a log shipping process that is not so reliable.
  • If the logs fill up the disk, the database will crash hard.
  • Sometimes this requires the server itself to exist rebooted.
  • Summary

    SQL Server is clearly positioned between Microsoft Access and Oracle in terms of functionality, performance and scalability. It is a wonderful workgroup-level solution, a very quick time to market solution, and is very simple to spend and administer. Oracle is much more advanced and has more to proffer for larger applications with both OLTP and data warehouse applications. Its novel clustering features are example for Application Service Providers (ASPs) on the Internet, who can now start with a cluster of two petite servers and grow by just adding a server when they exigency to.

    Reader Feedback

    Lucy L. writes: I accommodate worked with both and mostly harmonize with the author's observations, but I would fancy to mention the other side of this comment: "No "before" event triggers (only "after" event triggers) and no row triggers (only statement)." In SQL server, the statement-level trigger gives you access to the pseudo-tables INSERTED and DELETED. This means you can achieve an action for each row operated on in a setwise mode rather than in the row-at-a-time mode you must spend in Oracle. This is a much better deal in bulk operations where an Oracle row-level trigger can devour up much of the performance edge of bulk inserts or updates.

    Balaji S. writes: I contemplate it is fundamentally wrong to compare SQL Server with Oracle. I harmonize with everyone the points mentioned in the article. Oracle is a more ripen and advanced product than SQL Server. Also, I personally faced a problem when they implemented a CRM application over SQL Server. I was told that SQL Server has a circumscribe on the size of the row and that if the row is greater than a unavoidable size, then you exigency to split the row and insert into two tables with parent child relationship. This happened about a year back and I am not positive whether it is fixed or not. The company tried to migrate their CRM from Oracle to SQL Server but only ended up spending millions to find out that it is not going to work. They are continuing with Oracle now.

    Harvinder S. writes: I institute your article very informative. Here are some observations:

    1) Quote: "Also, SQL Server will escalate row locks to page flat locks when too many rows on a page are locked." From my understanding, SQL Server never escalates row flat lock to page flat lock. It will aquire page/row lock at the beginning and escalate to table flat lock if needed.

    2) Quote: "In T-SQL there are significant extensions to the ANSI SQL-92 gauge which means converting applications to a different database later will exist a code challenge re-write. The INNER JOIN, LEFT OUTER, right OUTER associate syntax differs from the classic JOIN." I find these extensions to exist very profitable for writing efficient code.

    3) I totally harmonize that SQL Server should accommodate the following features:

  • Minus
  • Partitioning
  • Indexes - bitmap, function-based, etc
  • Better oversight handling
  • Better locking mechanism
  • I hope the next article will exist testify SQL Server's advantages over Oracle.

    Patrick M. writes: absolute dribble. Clearly the author is an Oracle bigot. For someone that is certified in MS, he positive did accumulate some major items wrong about MS-SQL. Clearly he develops with Oracle and has only played with SQL Server, otherwise he would know better.

  • Stored procs are compiled in MS-SQL.
  • A feedback from another writer clarifies the before trigger issue (which is my basis for stating he doesn't actually spend MS-SQL).
  • Stating that migrating a db from system A to system B is hindered by T-SQL is absurd. That is the least of the issues. If you are poignant to another db, you will definitely accommodate huge issues just with the table designs. Lastly, no one puts a gun to your head to spend the MS extensions – MS-SQL supports ANSI-92 (this is my basis for stating he is an Oracle bigot – it's a reaching controversy to further his bias). Let me purchase this further, he states in Oracle you can spend java and read-write to external files, something you cannot conclude in MS-SQL, I dare ask, is this ANSI-92 compliant?
  • The dead connection detection feature works the selfsame in SQL and Oracle –- they both suck. How conclude I know, they elope both servers in production environments.
  • I will vouchsafe him that @@error is not elegant fancy just oversight handling. I am at a loss to recall if the oversight handling in PL/SQL is ANSI-92 compliant.
  • There ARE packages of procedure in SQL (as for functions, I conclude not know). This further proves he does not spend MS-SQL.
  • You can horizontally partition data in MS-SQL.
  • Why he defines enterprise as being able to elope on multiple platforms is beyond me. Once you accommodate the server to elope the software, it's a mute point.
  • As for some of the eclectic features he lists for Oracle –- I am nosy what of those features he uses today in most of his environments. Just because I can purchase control over the most minuscule factor of Oracle doesn't intimate I should. What makes me contemplate I am smarter than the many person-years gone into the server algorithms that sustain recollection allocation in check?
  • I probably could proceed on, but you accumulate the point. This article was a MS-SQL bashing article, not a "differences" article. I find it statistically impossible that MS-SQL doesn't conclude ANYTHING better than Oracle.

    Santosh B. writes: I minister to harmonize with the reader review of Patrick M. Oracle is a powerful system but SQL is very powerful too and the author has got some things totally wrong. My points are:

    1) You can conclude any sort of writing to and reading from external files , communicate with external apps everything by using external stored procedures. So these are com objects and dlls. but so what ? If you can spend java to conclude this in oracle, you can spend ext stored procs in TSQL.

    2) My understanding is that LEFT OUTER associate etc are ANSI standards! And Oracle has only now started supporting this. It makes coding so much more elegant especially when writing dynamic stored procedures.

    3) Has the author not heard of Enterprises that elope Microsoft platform? conclude they not successfully spend SQL Server? Hasn't SQL Server consistently topped everyone benchmarks?

    4) The SQL system is capable of tuning at low levels if you exigency to and in any case you exigency more knobs in Oracle since it caters to different platforms. The absence or presence of 100 tunable features doesn't in itself obtain for a better database.

    5) Partitioning is possible in SQL server and there are features fancy Distributed Partitioning.

    6) Sequence objects are not an ANSI gauge anyway. And besides, Oracle doesn't accommodate IDENTITY properties for columns.

    7) Who needs SQLNETtype connectivity really? They can conclude the selfsame by using ODBC DSN names and in .NET you spend config files. You don't exigency to change your code.

    8) Can he prove that Log Shipping is not reliable? Ok.. so 9i RAC is very powerful. I accept that, but instead of dismissing SQL's solutions, he'd better prove it.

    This wasn't a comparison. More fancy a rant...

    Earl C. writes: I absolutely harmonize that Oracle is superior to SQL Server in the passage that a Rolls Royce is superior to my Nissan Sentra. So why am I not driving a Rolls Royce? I guess the reply to that one is that I cannot afford a Rolls Royce and I conclude not exigency a Rolls Royce for my trips to Wal-Mart. My point is that for most companies and most databases SQL Server is wonderful enough. I only wish that Oracle offered a much cheaper version of their product with fewer advanced features. By the way, OEM 9i is passage better than SQL Server Enterprise Manager but of course you must conclude some toil to set up OEM.

    Andy W. writes: I've worked with both SQL Server (yes, the most current stable version) and Oracle 9i. Attempts at comparison is pointless: It's fancy comparing petite league baseball to the major leagues.

    There simply is no passage to rationalize away the platform dependency issue with SQL Server. Folks that attempt to conclude so, only emphasize their warp for the MS platform and accommodate petite admiration for TCO (Total Cost of Ownership) and ROI (Return on Investment) issues that confront IT management, especially in the cost conscious and competitive marketplace they kisser today.

    Don't exist overly concerned about the differences in the features, implementation and robustness of the two databases. SQL Server is a youthful and immature product that eventually will nearby the gap. What you are investing in is a long-term vendor relationship and you must study very carefully everyone aspects of that relationship, including licensing, support, standards compliance and portability. Migrating to a novel RDBMS is an extremely difficult and expensive process and essentially means you made the wrong choice. Technology exists to serve the business, and observant analysis of current and future business requirements should exist the primary consideration when evaluating database technologies.

    Don B. writes: Loved the article! I'm joyous that this daring DBA has the guts to discourse the verity against the Microsoft vaporware.

    Bob S. writes: Having worked with MS SQL Server and Oracle and knowing that each accommodate strengths and weaknesses, I'm surprised the author used such flimsy arguments for Oracle and against MS SQL Server. Also, some of the feedback lacks true insight.

    Consider the author's claim that Oracle has packages and SQL Server does not. Oracle uses packages with their PL/SQL software. They are wrappers for procedures but accommodate more acceptation than just being wrappers as the header and cadaver of the package is designed much the selfsame passage an Ada package is created and used. SQL Server does not accommodate this. They spend the term differently. Both author and responders are talking past each other.

    Personally, I fancy Oracle better for most DB applications. However, SQL Server is so light to toil with, especially for smaller databases. Backup and recovery is a breeze. Oracle is a Cadillac of RDBMS. For large (100+ GB) databases I cannot imagine trying to achieve a recovery on anything less than with an Oracle platform. PL/SQL is a much better language for developing SQL applications. Also, the exception is great. Locking strategy is better for ponderous applications. However, Oracle is over-kill for a lot of smaller applications. The true key for most business's is that they exigency to know there information requirements. If your information requirements are small, don't consume your time on using Oracle. If your information requirements are greater than this and you want the capability of being able to spend either Win2k or Unix, stick with Oracle. It's that simple.

    All of this talk about who is better than the other or who has what is a lot of wasted air. Both conclude a wonderful job. As for the author, gladden research these matters out before making bold statements that are really not completely accurate. Your prejudice really clouds the picture for the non-informed.

    Roger P. writes: I harmonize with Patrick -- this is purely SQL bashing and doesn't emerge to exist any profile of attempt at a true comparison.

    Locking and Concurrency - stating that SQL Server's locking architecture is less ripen is incorrect. The locking architecture is designed to process requests faster, as is evident by the TPC benchmarks (www.tpc.org), and is different than how Oracle handles it, so what?

    "SQL Server's locking scheme is much simpler (less mature) and will result in a lot of delays/waits in a ponderous OLTP environment." It's a poor craftsman that blames his tools. I wager I could purchase that environment and resolve any of those delay/wait issues through code or schema changes or even server configuration. Maintaining locks on objects is allotment of keeping transactions atomic in any dB environment. Row to page to table escalation reduces resource utilization overhead from trying to manage too many locks. If locks are an issue you should try running more frequent commits. In Oracle when a lock is encoutered the transaction goes through the log looking for the terminal known wonderful value. The implications of this are a query could certainly revert a result set that was not expected if instead it had waited for the current lock/update/insert to complete. It's everyone a matter of how you view this. There are pros and cons on either side.

    Oracle costs more than twice as much and isn't as feature moneyed for the ground cost. For example, out-of-the box SQL Server provides tools to operate in a heterogenous environment. Oracle charges soundless more for those tools after you pay the ground cost. Then they soundless suffuse more for maintenance. Microsoft provides everyone of their updates free of charge.

    SQL Server does not require downtime for any character of backups. Despite what the writer says, log shipping is an extremely inexpensive and dependable means of replicating data to a standby server. Scriping a DCL process in the gauge edition for log shipping is a simple job as well.

    "In SQL Server, the DBA has no "real" control over sorting and cache recollection allocation. The recollection allocation is decided only globally in the server properties recollection folder, and that applies for everyone recollection and not CACHING, SORTING, etc." Microsoft's goal here is to obtain these systems more self tuning and less recumbent to human error. This means that some things are not available to the DBA to change. In the writer's example he also mentions page and extent size, I'd counter that in SQL you don't accommodate to worry about data fragmentation any more as the kernel manages and mantains this. As future releases arrive out this will become more and more evident. Managing database properites in ASCII files is archaic, topic to oversight and inconsistencies and is, in plain terms, the wrong passage to elope things.

    "SQL Server is clearly positioned between Microsoft Access and Oracle in terms of functionality, performance and scalability." Puh-lease! It wasn't even until the release of 9i that Oracle started taking a serious ogle at management features. The only performance edge Oracle has had was on the 64-bit platform and that edge is now gone. SQL Server is faster, takes fewer DBAs to support, costs less, offers more robust tools and features that directly contribute to a company's bottom line than Oracle does. Oracle features and it's pricing model contribute only to Oracle's bottom line.

    "In SQL Server there is no such thing as SQL*NET aliases/service names! This means applications accommodate to arduous code the actual server cognomen into their apps, making it difficult to stride databases later to load balance across servers." Acquaint yourself with NetLib or you could even alias at the DNS server. In any case, at the very least if you're having to arduous code server names instead of using a registry or some profile of properties file and making this a variable in the app these coding habits leave something to exist desired anyway.

    "In SQL Server there is no "dead connection detection". Clients who lose their connection may soundless hold locks until a DBA is notified to murder their server side processes." I've seen the selfsame issues in Oracle, this depends more on the application touching the dB than the specific database vendor.

    @@error is a system defined variable to hold the terminal oversight and is by no means the only method of trapping and handling exceptions in SQL Server.

    Off the soap box for now. :)

    David H. writes: I harmonize with the feedback that asserted this was not a comparison but a SQL Server bashing exercise. I accommodate some undergo with PL/SQL and zilch with SQL Server, and was interested to learn the the relative strengths and weaknesses of the two systems. This articale has not achieved that. It is only half an article.

    Seetharaman S. writes: For two days before reading this, I was thinking about exactly the selfsame thing. Surprised to note this today. I accommodate worked and am working on Oracle and SQL databases and I find it difficult to ply SQL databases when the size of the DB goes beyond 4-8 GB. Even indexes are not efficient. They conclude a monthly process that initially takes 3 hours to complete. Subsequently after running it for two more months, it is taking something around 7 hours to 18 hours. Not joking at all, they tried again and again for the selfsame month before restarting the system. They did and finally it took 3 hours and 39 mins. The DBAs job with respect to SQL Server is bit difficult and at times was not able to reply where and what goes wrong. The other day, I had problem with the SQL server Agent and I institute out that it was related to the DTS and NT Fibers option. On another occassion, during installation, using the control panel, I removed the SQL server and restarted more than 10 times. Finally, I realized that some parameter in the registry had a '1' value so that I was not able to achieve a fresh installation. Also, while processing cubes, as you said, when they collect huge data, it locks the select statement triggered in some other connectivity. Although SQL Server has considerable user-friendly screens and installation advancements, it lacks Enterprise Puree, which is nowadays in demand.

    Scott T. writes: I harmonize with Patrick M that this is absolute SQL Server bashing and is far too one-sided to exist taken seriously. I account myself as an Oracle DBA and harmonize with some of the comments, but there are few details about which features are better in SQL Server than Oracle other than the summary provided. To add to Patrick's comments/corrections, you *can* alias SQL Servers via DNS so applications don't exigency to accommodate the server cognomen "hard coded".

    I would fancy Eli to interpret why he considers Oracle better than SQL Server "for both OLTP and data warehouse applications" when SQL Server holds nearly every tpc benchmark, both clustered and non-clustered? M$'s best endeavor is about 709K vs Oracle's best endeavor of about 428K, and Oracle is about $3 per transaction more expensive in these configurations!! also he fails to mention that although Oracle clustering technology is good, it also costs lots of $$$ through its licensing scheme.

    Joe Y. writes: Are you positive the author isn't an Oracle employee? I've been an Oracle DBA, SQL DBA, and am now playing with other stuff, including an engrossing toy called MySQL. Sure, there are pros and cons to Oracle and SQL, and a few of the points raised here are even valid but really, the "tip" in common looks fancy a typical Oracle marketing flyer.

    The author responds: As a DBA in both Oracle and SQL Server, I tried in this article to find everyone the things that exist in Oracle but not in SQL Server. Oracle surely has more functionality and is more ripen than MS SQL Server but there are some points in favour of SQL Server:

    1) Self-tuning, with update statistics checked and auto create statistics.

    2) User functions that can operate also as parametric views

    3) Insert...Exec stored procedure format that Oracle does not accommodate with the INSERT statement

    4) Identity column

    5) Very intuitive learning; i.e., it's easier to learn than Oracle.

    6) Linked servers are really much easier to implement than external procedures in Oracle.

    About the Author

    Eli Leiba works at the Israel Electric Company as a senior application DBA in Oracle and Microsoft SQL Server. He has certifications from Microsoft and BrainBench in Oracle and SQL Server database administration and implementation. Mr. Leiba holds a B.S. in computer science and has 11 years of undergo working in the database field. Additionally, Mr. Leiba teaches SQL Server DBA and evolution courses at the Microsoft CTEC and serves as a senior database consultant for several Israeli start-up companies.

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