You Want To Learn SQL? Here Is What I know So far...
SQL: What is it? First of all, it stands for Structured Query language. It is one of the programming languages used to communicate with relational dat…
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Cross-region data transfer from NFS server to Amazon EFS file system using AWS DataSync
Overview This AWS DataSync solution transfers data from an EC2-hosted NFS share in VPC A (us-east-1) to an Amazon EFS file system in VPC B (us-west-2)…
UCP Tech Council Expands: What the Meeting Minutes Tell Us About Where the Protocol Is Heading
On Friday just gone, five of the largest technology companies in the world quietly joined the governing body of the Universal Commerce Protocol. No pr…
All Data and AI Weekly #239-27April2026
All Data and AI Weekly #239-27April2026 ( AI, Data, Agentic AI, Cortex Code, NiFi, Iceberg, Polaris, Streamlit, Python, Java, SQL, MCP, LLM, RAG, Cort…
Top 6 Cryptocurrency Data APIs: Comprehensive Comparison (2026)
Most developers building crypto tools make the same mistake. They grab the first API with a free tier, get it working, then six months later realize t…
Как мы встроили LLM в Data Quality и не потеряли контроль
Привет, Хабр! Меня зовут Макунина Арина, я аналитик и инженер данных в Just AI. Рутина в работе с качеством данных почти всегда сводится к бесконечном…
Gnoke flatJSON — My JSON detection logic is now a library you can use.
Gnoke-flatjson ⚠️ Users would import a JSON file and the table would either crash, show [object Object] in cells, or worse — silently drop entire colu…
How Linux is Used in Real-World Data Engineering
So, you know Python and think, "Hey, why don't I get into Data Engineering?" You have your learning checklist ready to go, but there’s a giant, termin…
Apollo vs Hunter vs Lusha vs PDL: The Cost-Per-Contact Number Nobody Publishes (2026)
I ran Apollo.io , Hunter.io , Lusha , and People Data Labs against the same 450-contact test set last quarter. Every tool claimed 95%+ accuracy on the…
Part 1 - Introduction and End-to-End Architecture
Part 1 - Introduction and End-to-End Architecture 🌍 This project was built as part of the Data Engineering Zoomcamp final project. The goal is simple …
ClickHouse Native JSON Support in 2026: A PR-by-PR Analysis
TL;DR ClickHouse has full native JSON support, and has since v25.3. The JSON type stores each path as a separate columnar subcolumn with native type p…
Mastering the SQL Analytical Toolkit
As a budding data professional, I recently completed an intensive SQL Week 2 Assignment that pushed me from basic queries into more powerful territory…
Stop Collapsing Your Data: Why Window Functions Are a Game Changer
If you've been learning SQL for a few weeks, you're probably comfortable with GROUP BY . It's the bread and butter of data analysis. But have you ever…
How to Get Zillow Data Using a REST API in 2026 (No Scraping Required)
How to Get Zillow Data Using a REST API in 2026 (No Scraping Required) Getting property data from Zillow has always been a headache for developers. Th…
I Collected 8.9 Million Polymarket Price Points — Here's What I Found About How Markets Really Move
Everyone says prediction markets are efficient. I spent 30 days collecting data to test that claim. The result: 8.9 million data points across 9,550 m…
⚙️ Message-oriented vs. Data-oriented orchestration - from data to knowledge
For intellectual property reasons, the subject chosen for the application of this article will not be the one discussed, although it is closely relate…
The Most Wildfire-Prone Zip Codes in America — What USFS Data Shows
Climate change has made wildfire risk a major concern for homeowners across the western US. I pulled data from the US Forest Service and NIFC to build…
Why Real-Time Data Integration Matters for Modern Applications
This article was originally published on the layline.io blog . The difference between "near-real-time" and actually-real-time is wider than most teams…
AI Doesn’t Think — It Reflects What We’ve Already Put Online
There’s a common assumption that modern AI systems are inherently “intelligent,” as though they possess independent reasoning or original thought. In …
Your Observability Stack Is Probably a Mess (And You're Not Alone) 📊
The State of Observability 2026 report is out — here's what 407 DevOps engineers and SREs actually told us. Let's be honest. Most of us are juggling m…
How OpenSearch Plugins Really Work: Architecture & Extension Points
How OpenSearch Plugins Really Work: Architecture & Extension Points OpenSearch is powerful out of the box, but its true flexibility comes from plu…
AI КОМП-АС — разбор фреймворка. М: Можем ли дойти?
Мы подошли к этапу, где наконец перекинем мостик от анализа текущего состояния организации и бизнес-целей к технологиям и имплементации процесса AI тр…
Mastering Power BI: Connect, Preview, and Transform Data from any Source
Connecting Data from Multiple Sources in Power BI: A Comprehensive Technical Guide Introduction In the world of data analytics, insights are only as g…
Understanding SQL: DDL, DML, and data manipulation
What are DDL and DDL? SQL commands are grouped based on what they act on . Think of a database as a house: DDL builds the house (structure) DML furnis…
Build a Web Scraper and Sell the Data: A Step-by-Step Guide
Build a Web Scraper and Sell the Data: A Step-by-Step Guide =========================================================== Web scraping is the process of…
What is the difference between ETL and ETL?
Overview In the data engineering lifecycle, various data integration processes are used to make sense of this data. In this article, we'll focus on th…
Apache Parquet File Anatomy: Row Groups, Column Chunks, Pages, and Metadata Explained 🧱📦
If you use Spark, Athena, Iceberg, Snowflake, DuckDB, or Pandas, you’ve probably worked with Parquet hundreds of times. But most of us first learn Par…
Scientific Experiment: Can Market Data Identify Wine Type?
To address the Wine Classification challenge, we shift our objective from predicting a continuous score (Rating) to identifying the categorical identi…