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

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Stop Pasting \timing — Run Your SQL 100 Times and Get p99
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Stop Pasting \timing — Run Your SQL 100 Times and Get p99

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6 min read
Writing a Safe SQL INSERT Generator Taught Me Why ORMs Exist

Writing a Safe SQL INSERT Generator Taught Me Why ORMs Exist

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7 min read
SQL LIMIT and OFFSET: Paginate Your Query Results Like a Pro

SQL LIMIT and OFFSET: Paginate Your Query Results Like a Pro

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5 min read
Understanding DDL and DML SQL concepts

Understanding DDL and DML SQL concepts

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3 min read
Best roadmap to learn SQL programming
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Best roadmap to learn SQL programming

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4 min read
Writing a SQL Formatter With a Handwritten Tokenizer

Writing a SQL Formatter With a Handwritten Tokenizer

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3 min read
Understanding SQL: DDL, DML, Filtering, and CASE WHEN

Understanding SQL: DDL, DML, Filtering, and CASE WHEN

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3 min read
DuckDB 1.5.2, SQLite JSON Join Speedup, & Postgres NOTIFY Debugger

DuckDB 1.5.2, SQLite JSON Join Speedup, & Postgres NOTIFY Debugger

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3 min read
From Scratch to Queries: Building a School Database with SQL – My Nairobi Academy Project.
Cover image for From Scratch to Queries: Building a School Database with SQL – My Nairobi Academy Project.

From Scratch to Queries: Building a School Database with SQL – My Nairobi Academy Project.

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3 min read
SQL Fundamentals: DDL, DML, and Practical Data Manipulation

SQL Fundamentals: DDL, DML, and Practical Data Manipulation

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6 min read
How I Fixed a Correlated Subquery That Was Behaving Like an N+1 Problem in Production

How I Fixed a Correlated Subquery That Was Behaving Like an N+1 Problem in Production

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2 min read
Mastering SQL Fundamentals: From Data Definition to Data Transformation

Mastering SQL Fundamentals: From Data Definition to Data Transformation

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3 min read
The Restart Challenge: Day 1

The Restart Challenge: Day 1

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1 min read
Why PostgreSQL Ignores Your Index

Why PostgreSQL Ignores Your Index

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9 min read
SQL Basics: DDL, DML, Filtering & Data Transformation
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SQL Basics: DDL, DML, Filtering & Data Transformation

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3 min read
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