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select * from SQL

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

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SQLite Internals: lcd-ex vs hctree; PostgreSQL 19 SQL/PGQ Rewrites & pg_timetable Migration

SQLite Internals: lcd-ex vs hctree; PostgreSQL 19 SQL/PGQ Rewrites & pg_timetable Migration

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3 min read
Find Your Worst Postgres Query in 15 Minutes with pg_stat_statements

Find Your Worst Postgres Query in 15 Minutes with pg_stat_statements

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4 min read
Microsoft SQL Server and its Components

Microsoft SQL Server and its Components

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5 min read
Understanding Subqueries and CTEs in SQL: A Complete Guide

Understanding Subqueries and CTEs in SQL: A Complete Guide

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4 min read
OrioleDB Multi-Version Concurrency Control

OrioleDB Multi-Version Concurrency Control

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7 min read
DuckDB Iceberg MERGE, PostgreSQL GUCs, SQLite Optimization Checklist

DuckDB Iceberg MERGE, PostgreSQL GUCs, SQLite Optimization Checklist

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3 min read
We Don't Need Another Go ORM. We Need a Better One.

We Don't Need Another Go ORM. We Need a Better One.

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2 min read
Demystifying Vector Distance in PostgreSQL

Demystifying Vector Distance in PostgreSQL

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2 min read
Why 'WHERE x = NULL' Never Works in SQL (And What to Use Instead)

Why 'WHERE x = NULL' Never Works in SQL (And What to Use Instead)

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SQL: JOIN Queries

SQL: JOIN Queries

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5 min read
SQL: Aggregate Queries

SQL: Aggregate Queries

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4 min read
Query Optimization in IFS: The Hidden Performance Killer

Query Optimization in IFS: The Hidden Performance Killer

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5 min read
SQL: Normalização e Formas Normais

SQL: Normalização e Formas Normais

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4 min read
SQL Keyword, Tipos de Dados & Operators

SQL Keyword, Tipos de Dados & Operators

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3 min read
String#squish Quietly Changed My SQL

String#squish Quietly Changed My SQL

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4 min read
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