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

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Sub-queries vs Window Functions vs Common Table Expressions: Which Should You Use in SQL?

Sub-queries vs Window Functions vs Common Table Expressions: Which Should You Use in SQL?

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3 min read
Subqueries vs CTEs in SQL: A Complete Guide for Beginners

Subqueries vs CTEs in SQL: A Complete Guide for Beginners

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8 min read
PostgreSQL Covering Indexes: Eliminate Heap Fetches with INCLUDE

PostgreSQL Covering Indexes: Eliminate Heap Fetches with INCLUDE

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3 min read
SQL for Beginners: Essential Concepts Made Simple

SQL for Beginners: Essential Concepts Made Simple

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2 min read
SQL JOINs Explained Simply – From Beginner to Data Analyst

SQL JOINs Explained Simply – From Beginner to Data Analyst

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2 min read
SQL Functions You Will Actually Use in Data Work

SQL Functions You Will Actually Use in Data Work

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7 min read
PostgreSQL Vector Search & TimescaleDB Performance, SQLite Extension Build Fixes

PostgreSQL Vector Search & TimescaleDB Performance, SQLite Extension Build Fixes

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3 min read
A Practical Introduction to SQL: DDL, DML, and Data Analysis

A Practical Introduction to SQL: DDL, DML, and Data Analysis

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2 min read
A Curated LeetCode List for Full-Stack Developers

A Curated LeetCode List for Full-Stack Developers

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1 min read
Published a SQL Linter to PyPI Because I Was Tired of Bad Queries Hitting Production

Published a SQL Linter to PyPI Because I Was Tired of Bad Queries Hitting Production

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3 min read
PostgreSQL JSONB Indexing: GIN, Expression & Partial Index Strategies

PostgreSQL JSONB Indexing: GIN, Expression & Partial Index Strategies

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4 min read
DuckDB Extensions in C#, Production DuckLake, & pgvector Performance Insights

DuckDB Extensions in C#, Production DuckLake, & pgvector Performance Insights

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3 min read
🚨 When autocommit = false Caused Hidden Table Locks in SQL Server (pymssql + AWS Batch)

🚨 When autocommit = false Caused Hidden Table Locks in SQL Server (pymssql + AWS Batch)

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2 min read
PostgreSQL Full Text Search vs Elasticsearch Comparison

PostgreSQL Full Text Search vs Elasticsearch Comparison

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9 min read
Understanding SQL Window Functions

Understanding SQL Window Functions

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3 min read
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