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Posts on tips and tricks, using and learning about SQL for database development and analysis.

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What Happens If a Bank Transfer Fails Halfway? Understanding ACID Properties in SQL

What Happens If a Bank Transfer Fails Halfway? Understanding ACID Properties in SQL

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6 min read
SQL Patterns Hidden Inside Social Networks

SQL Patterns Hidden Inside Social Networks

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4 min read
Your agent's memory is a vector store. Ask it "how many" and watch it fall over.

Your agent's memory is a vector store. Ask it "how many" and watch it fall over.

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2 min read
SSMS Database Diagrams: Your ERD Is Trapped Inside the Database It Documents

SSMS Database Diagrams: Your ERD Is Trapped Inside the Database It Documents

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6 min read
Database Views in Your ERD: Read-Only Entities, Not Fake Tables

Database Views in Your ERD: Read-Only Entities, Not Fake Tables

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5 min read
How Do SQL Database Engines Work?

How Do SQL Database Engines Work?

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6 min read
Supabase Schema Diagram: Get an ERD You Can Keep, Not a Dashboard View

Supabase Schema Diagram: Get an ERD You Can Keep, Not a Dashboard View

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6 min read
MongoDB vs SQL: Which Database Should You Choose?

MongoDB vs SQL: Which Database Should You Choose?

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7 min read
I Built a Chrome Extension - Sidekick

I Built a Chrome Extension - Sidekick

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2 min read
Data Migration, Conversion, and ETL — What I Actually Did, Across Two Eras

Data Migration, Conversion, and ETL — What I Actually Did, Across Two Eras

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17 min read
Manticore Search 28.6.6: UUID document IDs, ordered GROUP_CONCAT(), and 16 fixes

Manticore Search 28.6.6: UUID document IDs, ordered GROUP_CONCAT(), and 16 fixes

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3 min read
Choose the Reporting Grain Before You Choose the Chart

Choose the Reporting Grain Before You Choose the Chart

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3 min read
Pg-Java v1.0 Debuts as New PostgreSQL Driver — Plus SQLite Fix & DuckCon #7

Pg-Java v1.0 Debuts as New PostgreSQL Driver — Plus SQLite Fix & DuckCon #7

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4 min read
How to write a cohort retention query in SQL (that actually runs)

How to write a cohort retention query in SQL (that actually runs)

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3 min read
Correlated Subqueries Explained: From Confusing to Intuitive

Correlated Subqueries Explained: From Confusing to Intuitive

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12 min read
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