The optimizer of IBM® DB2® for Linux®, UNIX®, and Windows® relies on a cost-based design. Using an SQL statement input by a user or application, the optimizer selects an execution plan with the lowest cost to achieve the best performance. If the performance still doesn't meet requirements after you have used all the best practices for tuning the SQL statement, you can use an optimization profile to guide DB2 to create the execution plan that the user expects. This article explains how to use optimization profiles within DB2 stored procedures.

Apache Pig is a high-level procedural language for querying large semi-structured data sets using Hadoop and the MapReduce Platform. Pig simplifies the use of Hadoop by allowing SQL-like queries to a distributed dataset. Explore the language behind Pig and discover its use in a simple Hadoop cluster.

Meine Frage wäre nun: Wozu verpflichtet "geistiges Eigentum"? Ich glaube, es ist bedeutend einfacher, diese Frage zu beantworten, als die Energien in eine Abschaffung des Begriffs "geistiges Eigentum" zu stecken.

Whether this post is going to be good or not, is up to you but I’ll try to outline what jQuery is, and how you can start working with it.

For most of you, this will just be a re-cap and probably not provide much new information but can perhaps serve as a reference post if you ever need one. I will expect some basic knowledge about JavaScript but you do not have to be an expert, heck, you don’t even need to have used jQuery before—but you should know terms like object literals, anonymous functions, and what DOM and CSS are.

THE spat between Google and Microsoft is shaping up to be at least as entertaining as Apple’s battle with the beige behemoth a decade ago.

Television is going the way of the dinosaur, and the deadly comet is called BitTorrent Live. Today, Bram Cohen, the author of the BitTorrent peer-to-peer sharing protocol, demoed his latest creation at the SF MusicTech Summit.

BitTorrent Live lets any content owner or publisher stream video to millions of people at good quality and with just a few seconds of latency…for free or cheap. Sports, news events, simulcast TV shows, education, video conferencing, or uncensored war zone broadcasts — this technology will power the future of video.

We grew up with the Internet and on the Internet. This is what makes us different; this is what makes the crucial, although surprising from your point of view, difference: we do not ‘surf’ and the internet to us is not a ‘place’ or ‘virtual space’. The Internet to us is not something external to reality but a part of it: an invisible yet constantly present layer intertwined with the physical environment. We do not use the Internet, we live on the Internet and along it. If we were to tell our bildnungsroman to you, the analog, we could say there was a natural Internet aspect to every single experience that has shaped us. We made friends and enemies online, we prepared cribs for tests online, we planned parties and studying sessions online, we fell in love and broke up online. The Web to us is not a technology which we had to learn and which we managed to get a grip of. The Web is a process, happening continuously and continuously transforming before our eyes; with us and through us.

"Offensive and insulting words are part of the robust democratic process, which is essential to a free country."

IBM says it has made a significant advance towards creating mind-bendingly powerful quantum computers with it superconducting 3D qubit device.

With experts hoping to construct a full working quantum computer in the next decade or so, the ability by IBM boffins to reduce errors in quantum processing and withhold information has made this even more likely.

Qubits, or quantum bits, are the basic units of information used to process information in a quantum computer. Unlike ‘bits’ used in regular computers, which can switch between 0 and 1, quantum bits can be either 0 or 1. Rather more perplexingly, the weird world of quantum mechanics means that they can also be both at the same time.

It is this ability to exist in multiple states that opens up potential for massively increased computing power.

Alan Turing, born a century ago this year, is best known for his wartime code-breaking and for inventing the 'Turing machine' – the concept at the heart of every computer today. But his legacy extends much further: he founded the field of artificial intelligence, proposed a theory of biological pattern formation and speculated about the limits of computation in physics. In this collection of features and opinion pieces, Nature celebrates the mind that, in a handful of papers over a tragically short lifetime, shaped many of the hottest fields in science today.

Sebastian Krahmer (@steaIth, c-skills) made and released a nice SSH/HTTP(S) multiplexer: sshttp. Such a program is needed when you want to share your HTTP (or HTTPS) port with SSH to be able to use SSH when behind a network that only allows outbound connections to HTTP (or HTTPS) and does not bother to do protocol inspection. Learn more by reading the readme.

I was previously using sslh but sshttp has a killer feature: it uses Linux IP_TRANSPARENT feature with netfilter trickery (marking + specific routing table) to pass the original IP to destination (sshd or httpd). Since it's a great program, not necessarily easy to set up (not yet? packaged), in this post I'm sharing my setup.

Microprocessor Systems 1 is a one-semester course taken by third year Electronic, Electronic/Computer and Computer Engineering students. It covers the Instruction Set Architecture (ISA) of a typical microprocessor- based computer, the Motorola MC68000, and equips students with a knowledge of the architecture, the associated assembly language, input/output programming techniques, exceptions (including interrupts) and exception-handling techniques. The module concludes with a simple introduction to the bus and instruction timing estimation.
This course is intended to enable students to design and develop programmes and programme 'architectures', to test and debug programs and to analyse and modify their execution behaviour, based on a thorough familiarity with the low-level architecture of a computer.

The Reverse Asynchronous JavaTM and XML (AJAX) technology enables dynamic content to be delivered to the browser, thus improving application performance by eliminating the need for constant polling. This technology can be used in many scenarios to deliver an excellent user experience.

For example, a news portal can push the news to a user's browser when it becomes available, without needing user action and without needing to keep refreshing or re-rendering the whole page. Another scenario is to display an up-to-date task list to which the server pushes the new task once it is created, so that the task owner doesn't need to keep pulling the updates.

In this article we go through all the steps needed to leverage Reverse AJAX in portlets using Dojo CometD implementation. We develop a Task List portlet that displays a set of tasks assigned to the logged-in user and to which the server keeps pushing any new tasks, using reverse AJAX.

A federal appeals court is rejecting an appeal from a bank-fraud defendant who has been ordered to decrypt her laptop so its contents can be used in her criminal case.

Colorado federal authorities seized the encrypted Toshiba laptop from defendant Ramona Fricosu in 2010 with valid court warrants while investigating alleged mortgage fraud, and demanded she decrypt it by typing in her password. In January, U.S. District Judge Robert Blackburn ordered the woman, who faces decades in prison if convicted, to decrypt the laptop by the end of February.

Her attorney appealed, hoping to win a reprieve based on the assertion that being forced to decrypt her laptop amounts to a breach of the woman’s Fifth Amendment right against compelled self-incrimination.

Forcing a criminal suspect to decrypt hard drives so their contents can be used by prosecutors is a breach of the Fifth Amendment right against compelled self-incrimination, a federal appeals court ruled Thursday.

Nach all den Diskussionen um die journalistischen und ethischen Standards bei Fefes Blog möchte ich nun an die Öffentlichkeit treten und einen lange unbeachteten Punkt in den Diskurs werfen: die Arbeitsbedingungen in der Redaktion von Fefes Blog.

Unter vorgehaltener Hand werden diese oft mit denen der Arbeiterinnen und Arbeiter und Transgender-Berufstätigen bei FoxConn verglichen: Unter unwürdigen Umständen müssen die Schreiberlinge mit einem menschenfeindlichen Zeitdruck klarkommen, selbständig CMS ohne jegliche GUI bedienen und die Zumutungen eines cholerischen Chefs ertragen. Die im Webteam beschäftigten Arbeiter mussten in mühevoller monatelanger Kleinarbeit XSLT-Filter schreiben, um jegliche Spuren des 150 Server starken verteilten Echtzeit-Java- und php-Backends zu vertuschen, außerdem Randgruppen-Browser für die Inkompatibilitätstests benutzen und Markov-Ketten-Generatoren für Füllabsätze trainieren.

Steve Kordek, who revolutionized the game of pinball in the 1940s by designing what became the standard two-flipper machine found in bars and penny arcades around the world, died on Sunday at a hospice in Park Ridge, Ill. He was 100.

We spend an inordinate amount of time shaving 10% off our backend time but often forget the golden rule, in general the largest bottleneck is your front end. We should not feel powerless to attack the front end performance issues and can do quite a lot to improve JavaScript bottlenecks and perceived user performance.

I recently figured out how to use Socket.io and Node.js to control the speed of a CSS3 animation with a synthesizer

Nachdem der Vertrag mit dem Verleger-Zusammenschluss Independent Publisher Group ausgelaufen ist, wollte Amazon in einer neuen Vereinbarung geringere Einkaufspreise für die E-Books aushandeln. Nachdem die Verhandlungen zu keinem Ergebnis kamen entschied Amazon, die elektronischen Bücher aus dem Verkauf zu nehmen. Gedruckte Ausgaben der Verleger waren dabei nicht betroffen.

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Amazons Machtdemonstration könnte das E-Book Geschäft nachhaltig beeinflussen. Experten gehen davon aus, dass der Kindle-Hersteller seine marktbeherrschende Stellung auch in Zukunft bei Preisverhandlungen ausspielen könnte.