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How to add Primary key into a New or Existing Table in SQL Server? Example

To add a primary key to an existing table in SQL Server, you can use the ALTER clause of SQL.
Sometimes tables lack a primary key due to a lack of a column that is both NOT NULL and UNIQUE.
Identity columns can be used as a primary key if there is no suitable column in the table.
Composite primary keys can be created by combining multiple columns.

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Hackaday

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This Week in Security: Target Coinbase, Leaking Call Records, and Microsoft Hotpatching

A recent GitHub Actions supply chain attack targeted Coinbase, starting with the spotbugs/sonar-findbugs repository and exploiting the pull_request_target hook, leading to leaked secrets and access tokens.
ZendTo, a file sharing platform, was found to have critical vulnerabilities including a PHP exec() security flaw and issues with legacy md5 passwords, potentially allowing code execution and weak password bypass.
Verizon's Call Filter iOS app had a security flaw in the callLogRetrieval endpoint, allowing unauthorized access to call records using JSON Web Tokens, which was promptly addressed by Verizon.
Nim's db_postgres module's parameterization method was found to not truly prevent SQL injection attacks, highlighting potential vulnerabilities in the Nim language's handling of SQL queries.
Oracle Cloud Classic suffered a breach, distinct from Oracle Cloud, but more details are emerging about a potential data leak and Oracle's response to the incident.
Microsoft has introduced in-memory security patching for Windows 11 Enterprise in the 24H2 update, providing hotpatching for security updates on supported machines.
GreyNoise researchers observed increased scanning for Palo Alto device login interfaces in March, possibly indicating preparations for an attack on Palo Alto devices.
ZDI highlighted Binary Ninja's use in finding use-after-free vulnerabilities and showcased an electric car simulator capable of interacting with real charging stations safely.

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Johndcook

424

Linear KdV dispersion

The linear KdV equation is a variant of the nonlinear KdV equation used to model shallow water waves.
Solitons, which are nonlinear waves that retain their identities in collisions, can still be observed in the solutions to the nonlinear KdV equation.
The solution to the linear KdV equation is expressed using the Airy function, representing solutions in the context of triple factorials and Bessel functions.
The linear KdV equation is a third-order linear PDE that arises in various applications.

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Dev

385

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iHateReading UI: 50+ React Tailwind building components

iHateReading UI is a component library that offers 50+ React Tailwind building components for web development.
The motivation behind iHateReading UI is to provide a platform where users can easily copy-paste React components and building blocks.
It aims to solve the repetitive work of recreating frontend interfaces, code repositories, and installing packages.
The components cover various use cases like CRM, Dashboard, Content sections, Navigation, Marketing sections, and more.

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Medium

161

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Ruby Aptible Toolbelt Error: “Tunnel did not come up” — Fix & Solution

Aptible is a PaaS solution for deploying Ruby applications with built-in security features and compliance certifications.
Aptible CLI simplifies the deployment process, automating tasks and improving developer productivity.
Common challenges when using Aptible include connectivity problems and errors related to the toolbelt.
Optimizing application for the platform and leveraging Aptible's security features are crucial for successful deployment.

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Dev

367

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I Tested 50+ LLMs and The Results Were Surprising.

Microsoft's Phi-4 was the most accurate LLM model overall.
IBM's Granite models outperformed many of OpenAI's offerings.
Speed vs. accuracy tradeoff depends on workflow.
GPT-4o Mini by OpenAI is a balanced choice for overall performance.

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Medium

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How To Learn Programming for BEGINNERS!

In this video, the content creator explains how to learn programming for absolutely free.
No experience or knowledge is needed to learn programming from scratch.
The video introduces a free website called freecodecamp.org for beginners to learn programming.
Learning to code opens up opportunities to become a web developer and earn money from freelancing.

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Dev

197

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Properly improper FRP: Time as a discrete function of events

Functional-reactive programming considers everything as a function of time, but this approach can be computationally expensive and inconvenient.
User interfaces can view time as both a continuous dimension and a series of discrete events.
Defining time as a sequence of past events can simplify management and testing of actions and reactions in UI.
Event stream libraries provide operators to reconcile different event sequences into a new one, making time relative and manageable.

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Medium

205

Developing Critical Thinking and Problem-Solving Skills

Teaching AI should cover ethical issues like prejudice, privacy, and transparency in addition to technical skills as the technology becomes more widespread.
Including ethical issues into AI education can produce a generation of responsible AI developers who value justice and the well-being of society.
Coding has been incorporated into the curricula of several schools that have adopted AI education, with platforms like Tek Play offering interactive coding tutorials and gamified teaching approaches.
Students studying AI are equipped to think critically, come up with original ideas, and adapt to a rapidly changing world, preparing them for future opportunities and challenges.

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Medium

192

AI’s Expanding Impact on Our Lives

Children who code are better able to comprehend AI algorithms and machine learning models and are able to deconstruct complicated challenges into smaller, more achievable steps.
The labor economy is changing dramatically due to AI. Research indicates that by 2025, AI may displace about 85 million occupations while generating 97 million new positions that call for specialized knowledge of programming, data analysis, and critical thinking — all of which are essential components of AI education.
When it comes to pursuing jobs in AI-driven industries, students who understand AI ideas and begin coding early will have an advantage.
The potential of AI education to stimulate innovation and creativity is among its most intriguing advantages. Students can try their hand at developing AI-powered applications, like games and chatbots.Early exposure to AI and coding helps pupils perceive technology as a tool for production rather than just consumption.

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Logrocket

153

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How to eliminate render-blocking resources — CSS and JavaScript

Render-blocking resources, including CSS stylesheets and JavaScript files, hinder the initial page load and can be eliminated by inlining critical CSS, deferring non-critical CSS and scripts, lazy loading, splitting JS bundles, caching or self-hosting third-party scripts, and removing unused styles and code.
Identifying and eliminating render-blocking resources is crucial for improving page speed, SEO, and Google's Core Web Vitals performance metrics like First Contentful Paint (FCP) and Largest Contentful Paint (LCP).
Tools like Lighthouse, PageSpeed Insights, and GTmetrix help in analyzing and identifying render-blocking resources, offering suggestions to improve site performance.
To optimize CSS delivery, critical CSS should be inlined, non-critical CSS deferred, and unused CSS removed. Chrome DevTools' Coverage tab can help visualize critical and non-critical CSS and JS.
For JavaScript delivery optimization, using defer or async attributes in

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