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

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greatCircleDistance in ClickHouse: Avoiding Full Table Scans

greatCircleDistance in ClickHouse: Avoiding Full Table Scans

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2 min read
Up down or Down up. Understanding Subqueries and CTEs in SQL: A Comprehensive Guide

Up down or Down up. Understanding Subqueries and CTEs in SQL: A Comprehensive Guide

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7 min read
5 SQL FUNCTIONS EVERY BEGINNER SHOULD KNOW

5 SQL FUNCTIONS EVERY BEGINNER SHOULD KNOW

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9 min read
The latest() Bug That Silently Duplicated Transaction IDs in Production

The latest() Bug That Silently Duplicated Transaction IDs in Production

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3 min read
SQL formatting — a practical guide for developers

SQL formatting — a practical guide for developers

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6 min read
SQL Deep Dive: Subqueries vs. CTEs — Which One Should You Use?

SQL Deep Dive: Subqueries vs. CTEs — Which One Should You Use?

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2 min read
Coding Cat Oran S1 Ep5, The IT Manager Nobody Hired

Coding Cat Oran S1 Ep5, The IT Manager Nobody Hired

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3 min read
Real-Time SQL Analysis in VS Code: Catch Dangerous Queries Before You Save the File

Real-Time SQL Analysis in VS Code: Catch Dangerous Queries Before You Save the File

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3 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
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
SQL Made Simple: A Beginner’s Guide to Understanding and Working with Data

SQL Made Simple: A Beginner’s Guide to Understanding and Working with Data

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3 min read
Understanding Data Modeling in Power BI: Joins, Relationships, and Schemas Explained

Understanding Data Modeling in Power BI: Joins, Relationships, and Schemas Explained

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12 min read
SurrealDB: How I Deleted 70% of My Backend Code (Part 2)

SurrealDB: How I Deleted 70% of My Backend Code (Part 2)

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2 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
Understanding Data Modeling in Power BI: Joins, Relationships, and Schemas Explained

Understanding Data Modeling in Power BI: Joins, Relationships, and Schemas Explained

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4 min read
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