28 SQL interview questions and answers from beginner to senior level
Whether you’re just starting your career as a developer, data scientist, or business analyst—or you have a few years of experience under your belt—using structured query language (SQL) is a core skill for a wide range of roles that involve database management, data analysis, and back-end development. And, it pays
Read moreThe negative binomial distribution and Pascal’s triangle
The Poisson probability distribution gives a simple, elegant model for count data. You can even derive from certain assumptions that data must have a Poisson distribution. Unfortunately reality doesn’t often go along with those assumptions. A Poisson random variable with mean λ also has variance λ. But it’s often the
Read moreA strange take on the harmonic series
It is well known that the harmonic series 1 + ½ + ⅓ + ¼ + … diverges. But if you take the denominators as numbers in base 11 or higher, the series converges [1]. I wonder what inspired this observation. Maybe Brewster was bored, teaching yet another cohort of
Read moreComparing Docker and Podman: A Guide to Container Management Tools
Docker vs. Podman: Understand key differences in container management, security enhancements, and Kubernetes integration to choose the best tool for your project. Continue reading Comparing Docker and Podman: A Guide to Container Management Tools on SitePoint.
Read moreHow to Deploy Flask Applications on Vultr
Flask on Vultr: Complete deployment guide covering Python setup, app security, Nginx reverse proxy, and SSL certificate integration. Continue reading How to Deploy Flask Applications on Vultr on SitePoint.
Read moreWhere does Postgres fit in a world of GenAI and vector databases?
Today we chat with Avthar Sewrathan, AI Lead at Timescale, about adapting developers’ favorite database management system, Postgres, to support a range of new technologies involved in the GenAI ecosystem, especially vector databases. Avthar details his long history with Postgres and how clients are weighing the build vs. buy question
Read moreA Comprehensive Guide to Understanding TypeScript Record Type
Learn why the Record type is so useful for managing and structuring object types in TypeScript. Continue reading A Comprehensive Guide to Understanding TypeScript Record Type on SitePoint.
Read moreChris’ Corner: Gold Star CSS Bloggers
CSS still gives me the warm fuzzies sometimes. We’ve gotten so many amazing CSS features the past few years, that each alone makes me happy. But when those features are combined, I’m often stunned and get thinking about how we’re only scratching the surface of what is to come. Take
Read moreVariance matters more than mean in the extremes
Suppose you have two normal random variables, X and Y, and that the variance of X is less than the variance of Y. Let M be an equal mixture of X and Y. That is, to sample from M, you first chose X or Y with equal probability, then you
Read moreTop 7 High-Paying Affiliate Programs for Developers and Content Creators
Read Top 7 High-Paying Affiliate Programs for Developers and Content Creators and learn APIs with SitePoint. Our web development and design tutorials, courses, and books will teach you HTML, CSS, JavaScript, PHP, Python, and more. Continue reading Top 7 High-Paying Affiliate Programs for Developers and Content Creators on SitePoint.
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