Focus: Databases
What is there to say about databases? They are one of the most important tools in enterprise, and yet at first glance they seem boring. However, authors and users both love them, as can plainly be seen by the number of articles (ten) that were submitted for this issue. We present five here, three in Strictly On-line and put off two for next month. We'll look at MySQL, NoSQL, PostgreSQL, Progress (next month), Oracle and the ODBC (open database connectivity) project, as well as using Java and the Web with databases. There are also reviews of DB2 and a book on mSQL and MySQL. If you don't learn something about databases this month, you must be an expert on them already.
Last month, we printed an article, “Multilink PPP: One Big Virtual WAN Pipe” purportedly by Paul Ammann. We have since learned the article was actually written by George E. Conant, formerly of Xyplex, and can be found on the Web at www.data.com/tutorials/multilink_ppp.html. We have not been able to reach Mr. Conant to offer our apologies personally, but do so here in this forum. We put a large amount of trust in the authors with whom we contract; Mr. Ammann has betrayed this trust both to us and to our readers. When I asked him about it by e-mail, he sent this reply:
From: pammann@tekrab.net (Paul Amman) Subject: RE: [ljeditor@linuxjournal.com.com: Boo! Hiss! (fwd)] Date: Tue, 31 Aug 1999 20:49:05 -0400 Well... to be honest, yes, I did copy the article. I guess there's no hiding it and it's time to own up to it now. There is no good explanation that would be acceptable for my behavior. Please advise me on what retribution I must make. I will accept full responsibility for my actions. Paul
We are extremely distressed that this happened—the only time in over five years of publishing.
—Marjorie Richardson
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| Designing Electronics with Linux | May 22, 2013 |
| Dynamic DNS—an Object Lesson in Problem Solving | May 21, 2013 |
| Using Salt Stack and Vagrant for Drupal Development | May 20, 2013 |
| Making Linux and Android Get Along (It's Not as Hard as It Sounds) | May 16, 2013 |
| Drupal Is a Framework: Why Everyone Needs to Understand This | May 15, 2013 |
| Home, My Backup Data Center | May 13, 2013 |
Enter to Win an Adafruit Pi Cobbler Breakout Kit for Raspberry Pi

It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Pi Cobbler Breakout Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- 5-21-13, Prototyping Pi Plate Kit: Philip Kirby
- Next winner announced on 5-27-13!
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Free Webinar: Hadoop
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
Some of key questions to be discussed are:
- What is the “typical” Hadoop cluster and what should be installed on the different machine types?
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