Showing headlines posted by bhushanp

This article will show how to extract the desired information using the same three steps when the web page is not written directly using HTML, but is auto-generated using JavaScript to update the DOM tree.

Web scraping is the set of techniques used the to get some information, structured only for presentation purposes, from a website automatically instead of copying it manually. This article by Javier Collado will show how this could be done using python in the steps that require some development.

Among other merits, Python is an ideal language for writing server-side scripts, allowing you to integrate interactive behavior with HTML. Persisting dynamic content to an underlying database is fairly straightforward. By installing an appropriate Python DB module, you get the ability to interact with the database of choice from within Python code, moving your application data in and out of the underlying persistent store. This article by Yuli Vasiliev will walk you through the process of building a simple Python application that interacts with a MySQL database. In a nutshell, the application picks up some live data from a web site and then persists it to an underlying MySQL database.

When you’re creating a query for non-technical users and you don’t want them to see the complexity of the query, you can create a view from the query. Your users can then use the view as a table; for example, they can double-click the view, which will effectively execute its complex query behind the scene. In MySQL Query Browser, you have two ways to create a view, From an existing query and Writing from scratch manually

There are many obstacles in creating the workflow for an organization which can lead you to believe that designing a workflow is difficult. How you are able to deal with these will depend on your organization and the people that are available to you. At least once you've read this article, you'll know that, once you've overcome those problems, the workflow itself will be easy.

MySQL Workbench is a visual database design tool recently released by MySQL AB. The tool is specifically for designing MySQL database. MySQL Workbench has many functions and features; this article by Djoni Darmawikarta shows some of them by way of an example. We’ll build a physical data model for an order system where an order can be a sale order or a purchase order, and then, forward-engineer our model into an MySQL database.

Traditionally, web hosts have had a difficult time offering efficient, highly secure web space for a multitude of customers. Generally, a host will provide cheap accounts on a shared server and offer virtual machines as a more expensive option for the more security-conscious site owners. In this article, Joshua Kramer will explain how to provide highly secure hosting for Python-based web applications in an efficient manner. With the popularity of applications such as Trac, Django, and TurboGears, Python-based web applications will become more prevalent in the future, and the concepts presented in this article will become more valuable.

MySQL Query Browser, one of the open source MySQL GUI tools from MySQL AB, is used for building MySQL database queries visually. In MySQL Query Browser, you build database queries using just your mouse—click, drag and drop!

One of the great blessings of PHP5 is its excellent support to manipulate XML. PHP5 comes bundled with new XML extensions for processing XML easily. You have a whole new SimpleXML API to read XML documents in a pure object-oriented way. Also, you have the DOMDocument object to parse and create XML documents. In this article we will learn these APIs and learn how to successfully process XML with PHP.

To gain a greater understanding of concept of SOA applications, BPEL processes and JBI applications, and to enable us to develop enterprise level SOA applications, we need to understand JBI in further depth, and how JBI components can be linked together. This article by Frank Jennings and David Salter will show the JBI Service Engine is supported within the NetBeans Enterprise Pack.

Many popular distributions, community-oriented and otherwise, take security very seriously. They have dedicated security teams that go over individual packages before they're rolled into a final release. To make sure you don't have any loose ends, these distributions and many other individual Open Source projects also publish an endless stream of security advisories and updates. Add to this security mechanisms like SELinux, AppArmor, and the upcoming TOMOYO Linux, and SMACK, and you know they mean business. So what room does this leave for specialist security distros?

Remembering all login IDs and passwords for all the Internet forums and communities that you are part of, is indeed an onerous task. We have all tried to get around this problem by jotting down passwords on pieces of paper or sticking notes to our terminal – all potentially dangerous practices that defeat the very purpose of keeping a digital identity secure. This article shows a solution called OpenID, which is free, non-proprietary, open standards based, extensible, community-driven framework with Open Source libraries and helpful tutorials to get you on board.

ZenEdu is a Live distribution that packs a whole bunch of educational tools on top of the Slackware-based light-weight and zippy Zenwalk Linux. Since learning is the core idea behind the distro, it goes beyond traditional curriculum subjects and also packs tools that'll teach students the basics of programming and music.

You can find both design ideas and complete themes on the Web. You need to decide whether you want to work with an existing theme, or convert a design into a theme, or whether you want to start from scratch, unburdened by any preliminary constraints or alien code. This article by Ric Shreves assumes you have a working Drupal installation, and that you have access to the files on your server and deals with finding, installing, and then uninstalling an existing and current Drupal theme.