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Articles & Books From Richard Blum
A right-to-the-point guide on all the key topics of SQL programming SQL Essentials For Dummies is your quick reference to all the core concepts of SQL—a valuable common standard language used in relational databases. This useful guide is straightforward—with no excess review, wordy explanations, or fluff—so you get what you need, fast.
Article / Updated 11-01-2020
Welcome to the world of Linux, the operating system developed by thousands of people around the world! In this article, you find out about Linux itself — what it is, where it comes from, and why it gets so much attention. Prepare to have your assumptions challenged about how software must be developed and sold, and your mind opened to new possibilities.
Article / Updated 11-01-2020
The Ubuntu installation process is one of the simplest in the Linux world. Ubuntu guides you through all the steps required to set up the system, then installs the entire Ubuntu system without prompting you for too much information.You can start the installation process from two locations after you boot from the Live DVD or USB stick:
Directly from the boot menu without starting Ubuntu
From the Install desktop icon after you start the Ubuntu Live system
Both locations start the same installation process, which guides you through several steps of options.
Article / Updated 11-01-2020
Troubleshooting is like reading a mystery novel. You have some facts, symptoms, and details, but you don’t know whodunit. You have to take whatever information you have, work with that data, weigh the various possibilities, and then narrow them to a single suspect. Finally, you need to test your theory and prove that your suspect is the guilty party.
Article / Updated 11-01-2020
Simplicity has become the hallmark of the GNOME 3 desktop environment for Linux. There aren't any long menus from which you need to select things from, nor do you need to go digging through folders looking for files, but getting comfortable with the new interface may take some time. This discussion walks through the basic features of the GNOME 3 desktop so you can maneuver your way around.
Article / Updated 11-01-2020
If you only have a single hard drive available in your PC, you need to create separate areas (called partitions) on the hard drive for Windows and Linux. This article walks through the process of how to do that, but first, you need to understand how partitions work.Three types of partitions are available: primary, extended, and logical.
Your step-by-step guide to the latest in LinuxNine previous editions of this popular benchmark guide can’t be wrong! Whether you’re new to Linux and need a step-by-step guide or are a pro who wants to catch up with recent distributions, Linux For Dummies, 10th Edition has your back. Covering everything from installation to automation, this updated edition focuses on openSUSE and Ubuntu and includes new and refreshed material—as well as chapters on building a web server and creating simple shell scripts.
The most thorough SQL reference, now updated for SQL:2023SQL All-in-One For Dummies has everything you need to get started with the SQL programming language, and then to level up your skill with advanced applications. This relational database coding language is one of the most used languages in professional software development.
Linux is for everyone! Linux All-in-One For Dummies breaks down the ever-popular operating system to its basics and trains users on the art of Linux. This handy reference covers all the latest updates and operating system features. It presents content on Linux desktops, applications, and more. With eight books in one, you’ll have access to the most comprehensive overview of Linux around.
Article / Updated 08-02-2023
The XMLHttpRequest object contains several class properties that you’ll need to know about to handle the HTTP response from the web server.
The XMLHttpRequest Class Properties
Property
Description
onreadystatechange
Defines a callback function that the browser triggers when the HTTP connection changes state
readyState
Contains the connection status of the HTTP connection
responseText
Contains the response sent by the web server in text format
responseXML
Contains the response sent by the web server in XML format
status
Contains the numeric HTTP response code from the web server
statusText
Contains the text HTTP response string from the web server
After you use the send() method to send a connection request to a web server, the HTTP connection process works through five connection states, as tracked by the readyState property:
State 0: The connection has not been initialized.