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

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How to Grade Search Relevance Before You Touch the Ranking Weights

How to Grade Search Relevance Before You Touch the Ranking Weights

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6 min read
Your Test Went Red. Can You Read It?

Your Test Went Red. Can You Read It?

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8 min read
Optimizing an 18 TB Azure SQL Hyperscale Database — Part 5: Where AI Actually Helped

Optimizing an 18 TB Azure SQL Hyperscale Database — Part 5: Where AI Actually Helped

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6 min read
How to Test Search Relevance Before You Ship a Ranking Change

How to Test Search Relevance Before You Ship a Ranking Change

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6 min read
Shadow-Gate Your LLM-Generated SQL: A Replay Test Against a Frozen Fixture Database

Shadow-Gate Your LLM-Generated SQL: A Replay Test Against a Frozen Fixture Database

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6 min read
A New Model Dropped. Is It Actually Good at Your SQL? A 30-Minute Smoke Test

A New Model Dropped. Is It Actually Good at Your SQL? A 30-Minute Smoke Test

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4 min read
The text-to-SQL demo takes an afternoon. The other 90% is why you should buy it.

The text-to-SQL demo takes an afternoon. The other 90% is why you should buy it.

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3 min read
Your companies table is lying to you about when things happened

Your companies table is lying to you about when things happened

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2 min read
SEQUENCE vs IDENTITY in SQL Server: Choosing the Right Auto-Increment

SEQUENCE vs IDENTITY in SQL Server: Choosing the Right Auto-Increment

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6 min read
# 🔬 PostgreSQL Internals: What Is Actually Inside an 8 KB Page?

# 🔬 PostgreSQL Internals: What Is Actually Inside an 8 KB Page?

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5 min read
From Raw Tables to Business Insights: A SQL Workflow Every SaaS Team Can Use

From Raw Tables to Business Insights: A SQL Workflow Every SaaS Team Can Use

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5 min read
SQL Subqueries vs CTEs: Types, Differences, Performance, and When to Use Each

SQL Subqueries vs CTEs: Types, Differences, Performance, and When to Use Each

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4 min read
Dominando SQL para la Ciberseguridad: De la Selección Básica a la Detección de Amenazas

Dominando SQL para la Ciberseguridad: De la Selección Básica a la Detección de Amenazas

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3 min read
Your text-to-SQL model isn't as wrong as your benchmark says. The gold SQL is.

Your text-to-SQL model isn't as wrong as your benchmark says. The gold SQL is.

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3 min read
How We Query 1.2 Billion Rows in Under 50ms — Partitioning, Columnstore, and Read Models at Scale

How We Query 1.2 Billion Rows in Under 50ms — Partitioning, Columnstore, and Read Models at Scale

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7 min read
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