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

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A Pegadinha do Auto-Incremento: Como o SERIAL do PostgreSQL se compara a outros SGBDs
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A Pegadinha do Auto-Incremento: Como o SERIAL do PostgreSQL se compara a outros SGBDs

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3 min read
I am building a Notebook Environment for SQL Inside a Database Client
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I am building a Notebook Environment for SQL Inside a Database Client

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5 min read
Refactoring the Nike Scraper: Replacing In-Memory Deduplication with SQLite
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Refactoring the Nike Scraper: Replacing In-Memory Deduplication with SQLite

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4 min read
pgvector Distance Functions: Cosine vs L2 vs Inner Product

pgvector Distance Functions: Cosine vs L2 vs Inner Product

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3 min read
Text-to-SQL Finally Gets Real: DySQL-Bench, BibSQL, DLBench Fix the 'Perfect Query' Myth
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Text-to-SQL Finally Gets Real: DySQL-Bench, BibSQL, DLBench Fix the 'Perfect Query' Myth

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3 min read
Power BI DAX Pattern Library

Power BI DAX Pattern Library

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3 min read
ajan-sql: Giving AI Safe, Read-Only SQL Access with MCP

ajan-sql: Giving AI Safe, Read-Only SQL Access with MCP

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4 min read
# Understanding Joins and Window Functions in SQL

# Understanding Joins and Window Functions in SQL

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7 min read
Getting Started With Seal Report: Applying Custom Joins
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Getting Started With Seal Report: Applying Custom Joins

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4 min read
From Pixels to Calories: Building an Unstructured Food Estimation Pipeline with GPT-4o & DINOv2 🍕🔬

From Pixels to Calories: Building an Unstructured Food Estimation Pipeline with GPT-4o & DINOv2 🍕🔬

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4 min read
SQL vs. NoSQL in System Design
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SQL vs. NoSQL in System Design

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5 min read
Introducing Duck-UI 0.0.32: A Streamlined Web Interface for DuckDB

Introducing Duck-UI 0.0.32: A Streamlined Web Interface for DuckDB

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3 min read
Mastering Joins and Window Functions in SQL
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Mastering Joins and Window Functions in SQL

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4 min read
PostgreSQL Joins and Window Function

PostgreSQL Joins and Window Function

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2 min read
PostGIS Spatial Indexing: Why Your Queries Are Doing Sequential Scans
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PostGIS Spatial Indexing: Why Your Queries Are Doing Sequential Scans

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3 min read
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