CreatorDesk: a self-hosted approval loop for commission artists
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built CreatorDesk is a self-hosted, open-source tool…
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Announcing det: - Fast, local-first SQL ETL workspace and pipeline orchestration engine
What if you could build complete, production-grade ETL pipelines in Pure SQL… without Jinja templates, without a database server, and without heavy…
5 SQL window-function traps that show up in data engineering interviews (with runnable DuckDB examples)
Window functions are the most common SQL topic in data engineering interviews, and most candidates know the syntax. The follow-up questions are wher…
Designing a Production-Ready Data Science Pipeline: From Raw Events to Monitored Models
A model is only one artifact in a production data science system. The harder engineering problem is creating a reliable path from changing source da…
How I built one open-source SQL workspace for five database engines
Working with more than one database engine often means maintaining more than one workflow. The SQL is familiar, but the editor, schema browser, resu…
The Hard Truth About Data Engineering Interviews Nobody Tells You
It's 11 PM. You've solved forty LeetCode mediums this month. Your GitHub has a shiny new Airflow project with green checkmarks all the way down. Tom…
LIKE in SQL, Explained for Beginners
By Michael Nocito , data analyst · Updated August 19, 2026 Most of the time you ask SQL for an exact value. WHERE status = 'Active' is a closed ques…
How I made SQL run inside a single, offline HTML file (no WASM)
There's a whole genre of "single-file HTML data viewer" tools: you point them at a CSV and they emit one .html file you can email, drop on a share d…
I built a free, interactive SQL practice tool for data engineering interviews
Most data engineering interview prep resources I found online were static — a list of questions with answers underneath. You read the answer, nod, a…
LuaDB – A pure Lua RDBMS engine with B+Trees, WAL, and Postgres wire protocol
I built LuaDB – an embeddable relational database written 100% from scratch in pure Lua (no C extensions or external dependencies). Key features: Sl…
Stop writing raw SQL in your migrations (most of the time)
Something I keep seeing across teams, especially with people who are getting comfortable with tools like db-migrate or Kysely , is a very specific h…
A SQL interview is a translation test, not a syntax test
Canonical: this is a cross-post. The original lives at https://four-leaf.ai/blog/sql-interview-guide Key takeaways A SQL interview is a translation…
Read-Only by Design: Letting AI Explore Your Database Without the Risk of Writes
There's a moment every developer hits the first time they connect an AI assistant to a real database: it works beautifully, the model writes a clean…
Database Development Without ORM: A Pragmatic Approach to SQL-First Workflows
The Problem with ORM Abstraction Many developers express frustration with ORM tooling, particularly around SQL migrations. The desire to work direct…
Closing the Tax Gap with a Data Model: Invoice Traceability in SQL
The U.S. tax gap—the difference between taxes owed and taxes paid on time—runs about $696 billion a year, and most of it is underreported business i…
Your companies table is lying to you about when things happened
Every company dataset I have worked with stores history as scalar columns: founded_year INT ceo_name TEXT headquarters TEXT revenue BIGINT Every one…
From Raw Tables to Business Insights: A SQL Workflow Every SaaS Team Can Use
You add a subscriptions table, an events table, a handful of orders . Six months later someone on your team asks "what's our MRR trend?" and three p…
Intuit OA 2026 Guide: Code, SQL & Bash Questions Explained
The Intuit Online Assessment (OA) has started rolling out again, and the format remains very similar to previous years. Most candidates receive thre…
Databricks launches AI agent for legacy SQL migration
Databricks is expanding its Lakebridge toolkit by introducing an agentic code conversion feature designed to help organizations migrate from legacy…
Why I Built a Free SSMS Extension to Stop Destructive Queries
The moment that started it A colleague of mine was cleaning up some old records in a staging environment. Same query he'd run a dozen times before,…
Lucidchart ERD Alternative: A Desktop ERD Tool That Connects to Your Database
Disclosure: I build Schemity , a desktop ERD tool - this post is from our blog and uses it for the examples. TL;DR: Lucidchart draws entity relation…
Azure SQL Managed Instance vs Azure SQL Database: How I Actually Made the Call
A field decision from a real production migration — not a feature-matrix blog. When we migrated two internal enterprise applications (plus an integr…
Why Are Data Analysts in High Demand in 2026?
A Deep Look at the Career Powering the Data-Driven World Introduction: Data Is Everywhere—But Insight Is Rare In 2026, the collection of data no lon…
ORA-00060 Deadlock: Find It, Fix It, Prevent It
ORA-00060: deadlock detected while waiting for resource is one of the most misunderstood errors Oracle throws. The two myths that cause the most dam…
The Database Architect Teaches His Nephew: Where the Real Interview Happens
Same uncle, this time in "Database Architect" mode. Same nephew, this time asking the question every backend developer eventually asks out loud. Par…
One query language for SQL, Mongo, and the browser: the case for Forge
There's a moment in most TypeScript backend projects when the data layer stops being one thing. Maybe you started on Postgres, then a feature shippe…
The Fastest Way to Add Reporting to Your Internal Tool
You built a solid internal tool. It manages customers, tracks orders, handles operations. Your team lives in it every day. Then someone in leadershi…
Product Analytics with SQL: Tracking What Actually Matters
Most product teams have the opposite of an analytics problem. They have too many metrics. Page views, session counts, click-through rates, bounce ra…
Implementing Feature Flags Across Stack
Shipping an application that I didn't have access to was giving me heartburn. So I decided to create a lightweight feature flag tool. The Problem Th…
SQLite WAL Debug, pgstream v1.1.0, & Postgres Scaling Retrospective
SQLite WAL Debug, pgstream v1.1.0, & Postgres Scaling Retrospective Today's Highlights This week's database highlights include a deep dive into…