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Programming: MySQL, JavaScript, GCC

Submitted by Roy Schestowitz on Friday 19th of March 2021 07:03:41 AM Filed under
Development
  • MySQL RANK Window Function – Linux Hint

    The Ranking method allocates a rank inside the partition of an outcome of a set to every row. A row’s rank is determined by incrementing one figure of ranks from the row which precedes it. MySQL utilizes a ranking feature that helps one rank per row in a schema partition. In MySQL, the rating methods are indeed a semi-part of the window method.

  • MySQL Row Number Window Function – Linux Hint

    Within MySQL, a ROW NUMBER() method contains a chronological number for every row inside the partition. It is just a window feature of some kind. The figure of rows begins at 1 with the figure of rows within the partition. Remember, before version 8.0, MySQL doesn’t permit the ROW NUMBER() function however, it offers a session variable that helps one imitate this feature. We will understand more about MySQL ROW NUMBER() functionality throughout this guide and produce a consecutive number for every row in the result collection.

  • SQL Truncation Attack – Linux Hint

    The SQL Truncation vulnerability occurs when a database truncates the user input due to a restriction on the length. Attackers can gather information about the length of a critical field (such as a username) and exploit this information to gain unauthorized access. Attackers can log in as some other user, such as an admin, with their own registered password.

    SQL truncation vulnerability usually exists in MySQL databases. This vulnerability was first described in CVE-2008-4106, which was related to WordPress CMS.

  • Vue Watch to make Dynamic Interaction – Linux Hint

    Vue.js is a very impressive and reactive JavaScript’s front-end framework used to develop front-end websites quickly and easily. This post will learn about the watch property that is one of the most fundamental concepts.

    Vue.js provides a watch property to watch a variable, and on the change of that variable, it allows us to run a function so that we can make Dynamic Interaction. Let’s try an example and have some dynamic interaction using the Vue Watch property.

  • What is a Vue Directive, and how to use it? – Linux Hint

    A framework aims to provide such features that make the development process easier and faster for the developers. Vue.js is such a feature-enriched JavaScript framework that provides many built-in functions and directives to quickly make the development process. But, there must come some scenarios when you need some functionality that is not available by the framework, so you have to build your own.

    In this post, we will learn and take a look at the built-in directives provided by the Vue.js framework, and we will also learn to create and use our own custom-made Vue directive.

  • User Authentication in Node.js with Passport.js and JWT – Full 6-Hour Course

    If you are making a web app, chances are it will have users that need to be authenticated.

    We just published a 6-hour course on the freeCodeCamp.org YouTube channel that will teach you how to implement user authentication from scratch in your Node.js and Express apps. You will lean how to use Passport.js.

  • GraphQL VS REST – Benefits and Code Example Comparisons

    REST was not the first protocol for sending information over the web. But for over a decade, it has dominated the API landscape.

    More recently, GraphQL, a newcomer designed by Facebook, has become more and more popular. It is intended to correct some of REST’s weaknesses, but no technology is perfect.

    What are the benefits of GraphQL over REST, and why would you use one over the other in your project?

  • Zen 3 GCC Tuning Continues With More Correct Latencies Rather Than "Random Numbers"

    On Monday, the AMD EPYC 7003 "Milan" launch day, we finally got to see some serious tuning begin for the Zen 3 "Znver3" CPU target in the GCC compiler after that initial code landed at the end of last year. Yesterday a second Zen 3 tuning patch was published and then today a third tuning patch has made it out.

    This third Znver3 tuning patch out today is again from SUSE's Jan Hubicka. He sent it out on the mailing list and right away merged it as a "fix" for the GCC 11 compiler release that will debut as stable in the next month or so as GCC 11.1

    This third patch is a small change but is updating the costs of integer divides to match the actual latencies found with Zen 3 processors.

»

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    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

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