Data Analytics & Business Intelligence

And how to fix them before your database becomes the reason everything feels slow Continue reading on Medium »

The filing was 847 pages long. I found the revenue number on page 312, buried inside a footnote that referenced a table three sections… Continue reading on Medi

The filing was 847 pages long. I found the revenue number on page 312, buried inside a footnote that referenced a table three sections… Continue reading on Medi

A century and a half of results, an Elo model, and 40,000 simulated tournaments — to answer a question every fan has shouted at a screen… Continue reading on Me

If you're building a modern data stack that requires either high-throughput transaction processing or...

Overview of the Data Analytics (AI/ML) ROI 101 series of articles Continue reading on Medium »

I ran Airflow at home to pull live stock data. Here’s how I did it and what I learned. Continue reading on Analytics Vidhya »

Research: Mapping SQLite result columns back to their source `table.column` It would be neat if arbitrary SQL queries in Datasette could be rendered with additi

Why pharmacogenomic testing may become one of the most underused tools in pain management, behavioral health, and primary care Continue reading on Medium »

The bottleneck in self-service analytics is not the AI. Continue reading on Medium »

For the last decade, if you asked a startup how to count their daily active users, the answer was a $15,000-a-month Rube Goldberg machine. Continue reading on T

For the last decade, if you asked a startup how to count their daily active users, the answer was a $15,000-a-month Rube Goldberg machine. Continue reading on T

Recentemente comecei minha transição para a área de Análise de Dados e tenho dedicado parte do meu tempo a estudar ferramentas e conceitos… Continue reading on

The exact patterns that decide most data engineering SQL screens, with explanations that build real intuition. Continue reading on Medium »

Real-World Window Function Examples Every Analyst Should Know Continue reading on Medium »

The best team on paper has lost more World Cups than it’s won. Continue reading on AI & Analytics Diaries »

Risk analytics meets the diamond trade — built for importers, exporters, and traders across India Continue reading on Medium »

Pandas and polars pipelines fail silently — a merge adds nulls, a filter drops rows, a cast changes dtypes, and nothing crashes. Here's how to find which step d

Before I thought Excel was just something accountants use to make tables look neat. I was wrong —...

Recently, I completed my first full Data Engineering project: building an end-to-end ETL pipeline...

Moving past rhetoric to build a data-driven, value-centric ecosystem for future policymakers. Continue reading on Medium »

Find Top Categories and Highly Active Users by Country Continue reading on Medium »

A coffee shop conversation about why data scientists spend 80% of their time cleaning data — and why that’s actually the most important… Continue reading on Med

A coffee shop conversation about why data scientists spend 80% of their time cleaning data — and why that’s actually the most important… Continue reading on Med

A coffee shop conversation about why data scientists spend 80% of their time cleaning data — and why that’s actually the most important… Continue reading on Med

A practical, honest guide to building a LinkedIn profile scraper: why there's no public API, how public pages embed JSON-LD, and the legal reality.

Over the past few weeks, I had the opportunity to complete the Data Science / Machine Learning internship under the OIBSIP program by… Continue reading on Mediu

Your Pipeline Is 28.0h Behind: Catching Climate Sentiment Leads with Pulsebit We just...

Every few years, the data world gets a new promise that sounds like liberation. Continue reading on Medium »

Every few years, the data world gets a new promise that sounds like liberation. Continue reading on Medium »

The pitch sounds almost too good. Because it might be. Continue reading on Medium »

When you first encounter a raw financial dataset, whether from an SEC filing, a Bloomberg feed, or a company’s investor relations page… Continue reading on Medi

A simple shift in mindset that made learning Databricks feel less overwhelming and more practical Continue reading on Medium »

A Titanic notebook will not get you hired. Here is what a real data science project shows, handling messy data, avoiding leakage, honest validation, and a clear

Before building a machine learning model, before writing a single line of predictive code, there is a step that separates mediocre data… Continue reading on Med

Patients have never had more information about their health, but much of it is unusable. Here's why.

Let's practice data science thinking through a probability problem The post Solving the 3Blue1Brown String Probability Problem (Without AI) appeared first on To

I am very proficient in using (MS Word), (MS Excel), and (Adobe Acrobat) to convert pdf to Word or google docs. I am creative and fast… Continue reading on Medi

If you run a website, you’ve probably noticed the slow unraveling of the old analytics playbook. Cookie consent banners annoy visitors, ad… Continue reading on

ClickHouse® offers powerful query optimization features such as Projections and Data Skipping Indexes...

When I joined the data team at an automotive parts company, the inventory query everyone relied on...

Emergency procurement was happening 23 times per month at the automotive parts company where I work....

Step into the future of analytics with the Data Analytics with Gen AI course at the Institute of Data Science and Analytics, Janakpuri… Continue reading on Medi

Postgres is the right default until it isn't. Five questions that tell you when to reach for something else, before you're locked in.

Transactional outbox vs Debezium-style CDC. Coupling, ordering, ops cost, a decision matrix, and the hybrid path most teams end up running.

SQL is one of the most practical skills in data science. If Python helps you analyze data, SQL helps you reach the data in the first place. Continue reading on

“Free” arbitrage and the bot that read the weather. Two flawless hypotheses on paper, two lessons in why efficient markets give you… Continue reading on Medium

Source: Fundamentals of Data Engineering by Joe Reis and Matt Housley, published by O'Reilly...