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

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7 Postgres Tools Every AI Engineer Should Know

7 Postgres Tools Every AI Engineer Should Know

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5 min read
What Is SQL Injection? How User Input Can Become a Database Command

What Is SQL Injection? How User Input Can Become a Database Command

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4 min read
How to run generative AI on SQL tables with Snowflake Cortex

How to run generative AI on SQL tables with Snowflake Cortex

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5 min read
iris-agentic-dev -- Give Your AI a Live Connection to IRIS, Part 1: The Problem, the Tool, and Getting Started

iris-agentic-dev -- Give Your AI a Live Connection to IRIS, Part 1: The Problem, the Tool, and Getting Started

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8 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
Postgres Array Column vs Junction Table: What Each One Does to Your ERD

Postgres Array Column vs Junction Table: What Each One Does to Your ERD

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10 min read
Learn SQL by Typing It: Three Browser Database Terminals Compared

Learn SQL by Typing It: Three Browser Database Terminals Compared

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5 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
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
The Gap Between College SQL and Industry Reality When I was in college, I thought I knew databases.

The Gap Between College SQL and Industry Reality When I was in college, I thought I knew databases.

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3 min read
Four traps in querying 1.79M Overture Maps records with DuckDB

Four traps in querying 1.79M Overture Maps records with DuckDB

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4 min read
Why Even Advanced AI Breaks Stock Registers: 12 Years of Snapshot Log Evolution and RDBMS Physics

Why Even Advanced AI Breaks Stock Registers: 12 Years of Snapshot Log Evolution and RDBMS Physics

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4 min read
Tracking Tableau Server Storage Over Time with PostgreSQL

Tracking Tableau Server Storage Over Time with PostgreSQL

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2 min read
Window Functions Demystified: ROW_NUMBER vs RANK vs DENSE_RANK (Execution Internals)

Window Functions Demystified: ROW_NUMBER vs RANK vs DENSE_RANK (Execution Internals)

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2 min read
That VARCHAR(255) Was Never a Decision. It Was a Default.

That VARCHAR(255) Was Never a Decision. It Was a Default.

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4 min read
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