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Posts on building, using, and learning about databases.

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Data Modelling, Relationships & Joins in PowerBI

Data Modelling, Relationships & Joins in PowerBI

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9 min read
Turn any SQL schema into an interactive ER diagram

Turn any SQL schema into an interactive ER diagram

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2 min read
I broke my own database with an infinite loop, and here's what I learned about Row Level Security

I broke my own database with an infinite loop, and here's what I learned about Row Level Security

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4 min read
How Express Actually Talks to a Database: From HTTP Request to SQL Query

How Express Actually Talks to a Database: From HTTP Request to SQL Query

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12 min read
Can I veto the agent's DDL before it hits main?

Can I veto the agent's DDL before it hits main?

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7 min read
Go SQL Query Builder Without Dependencies: Relica, the ozzo-dbx Successor — What Broke on PostgreSQL and SQLite

Go SQL Query Builder Without Dependencies: Relica, the ozzo-dbx Successor — What Broke on PostgreSQL and SQLite

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6 min read
ORA-00257: The Database Stopped Accepting Writes. The Archiver Is Stuck.

ORA-00257: The Database Stopped Accepting Writes. The Archiver Is Stuck.

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12 min read
Backups You Have Never Restored Are Just Hope

Backups You Have Never Restored Are Just Hope

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2 min read
When to Index a Table: A Practical Guide for Analysts

When to Index a Table: A Practical Guide for Analysts

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15 min read
Cohort Retention Analysis in SQL, Step by Step

Cohort Retention Analysis in SQL, Step by Step

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14 min read
Why Your Database Needs a Taxi Stand: An Intro to Connection Pooling

Why Your Database Needs a Taxi Stand: An Intro to Connection Pooling

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3 min read
Funnel Conversion in SQL, and the Step That Shows 100%

Funnel Conversion in SQL, and the Step That Shows 100%

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14 min read
Caching Strategies Explained: From Browser to Database, and the Stale Data in Between

Caching Strategies Explained: From Browser to Database, and the Stale Data in Between

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10 min read
I DNA-encode my encrypted database before writing it to disk - here's why (and why it's not "quantum" anything)

I DNA-encode my encrypted database before writing it to disk - here's why (and why it's not "quantum" anything)

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2 min read
UUID v4 vs. UUID v7 vs. ULID in 2026: Database Index Performance, B-Tree Fragmentation & When to Migrate

UUID v4 vs. UUID v7 vs. ULID in 2026: Database Index Performance, B-Tree Fragmentation & When to Migrate

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8 min read
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