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

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Statistics by time window: SPL VS SQL #16

Statistics by time window: SPL VS SQL #16

6
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3 min read
Deduplicate between an Uncertain Number of Columns โ€” From SQL to SPL #21
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Deduplicate between an Uncertain Number of Columns โ€” From SQL to SPL #21

7
Comments 1
2 min read
Study Notes 6.11-12: Kafka ksqlDB, Connect & Schema Registry
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Study Notes 6.11-12: Kafka ksqlDB, Connect & Schema Registry

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7 min read
Indexing in PostgreSQL: Pros, Cons, and Best Practices
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Indexing in PostgreSQL: Pros, Cons, and Best Practices

2
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3 min read
Database Normalization Summary

Database Normalization Summary

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1 min read
๐Ÿ” Data Cleaning Techniques Using SQL
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๐Ÿ” Data Cleaning Techniques Using SQL

1
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1 min read
Deploying a FastAPI + PostgreSQL App Using Google Cloud Run and Cloud SQL
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Deploying a FastAPI + PostgreSQL App Using Google Cloud Run and Cloud SQL

1
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2 min read
๐Ÿš€ Mastering Unit of Work in SQLAlchemy: Efficient Transactions in 2025

๐Ÿš€ Mastering Unit of Work in SQLAlchemy: Efficient Transactions in 2025

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1 min read
๐Ÿš€ SQL Query Optimization in 2025: 7 Techniques for Faster Performance

๐Ÿš€ SQL Query Optimization in 2025: 7 Techniques for Faster Performance

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1 min read
How to Optimize SQLite Performance With Indexed Views and Write-Ahead Logging
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How to Optimize SQLite Performance With Indexed Views and Write-Ahead Logging

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2 min read
Essential SQL Commands: A Quick Reference Guide
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Essential SQL Commands: A Quick Reference Guide

7
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8 min read
Top 3 PostgreSQL Performance Issues: Diagnosis and Proven Solutions

Top 3 PostgreSQL Performance Issues: Diagnosis and Proven Solutions

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5 min read
Deduplicate between an uncertain number of columns๏ผšSQL VS SPL #15

Deduplicate between an uncertain number of columns๏ผšSQL VS SPL #15

7
Comments
2 min read
๐Ÿ—ƒ๏ธ Introduction to Database Design: Concepts Every Beginner Should Know

๐Ÿ—ƒ๏ธ Introduction to Database Design: Concepts Every Beginner Should Know

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4 min read
Find the Closest Date Match for Each Record from Two Tables โ€” From SQL to SPL #20
Cover image for Find the Closest Date Match for Each Record from Two Tables โ€” From SQL to SPL #20

Find the Closest Date Match for Each Record from Two Tables โ€” From SQL to SPL #20

6
Comments 1
2 min read
SQL Joins Made Easy: INNER, OUTER, LEFT, RIGHT Joins
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SQL Joins Made Easy: INNER, OUTER, LEFT, RIGHT Joins

4
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1 min read
Are SQL Joins Expensive?

Are SQL Joins Expensive?

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2 min read
๐—›๐—ผ๐˜„ ๐˜๐—ผ ๐—”๐˜‚๐˜๐—ผ๐—บ๐—ฎ๐˜๐—ถ๐—ฐ๐—ฎ๐—น๐—น๐˜† ๐—จ๐—ฝ๐—ฑ๐—ฎ๐˜๐—ฒ ๐—ฆ๐—ฝ๐—ฒ๐—ป๐˜ ๐—”๐—บ๐—ผ๐˜‚๐—ป๐˜ ๐—ถ๐—ป ๐—•๐˜‚๐—ฑ๐—ด๐—ฒ๐˜ ๐—จ๐˜€๐—ถ๐—ป๐—ด ๐—ง๐—ฟ๐—ถ๐—ด๐—ด๐—ฒ๐—ฟ๐˜€ ๐—ถ๐—ป ๐—ฆ๐—ค๐—Ÿ ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ฒ๐—ฟ

๐—›๐—ผ๐˜„ ๐˜๐—ผ ๐—”๐˜‚๐˜๐—ผ๐—บ๐—ฎ๐˜๐—ถ๐—ฐ๐—ฎ๐—น๐—น๐˜† ๐—จ๐—ฝ๐—ฑ๐—ฎ๐˜๐—ฒ ๐—ฆ๐—ฝ๐—ฒ๐—ป๐˜ ๐—”๐—บ๐—ผ๐˜‚๐—ป๐˜ ๐—ถ๐—ป ๐—•๐˜‚๐—ฑ๐—ด๐—ฒ๐˜ ๐—จ๐˜€๐—ถ๐—ป๐—ด ๐—ง๐—ฟ๐—ถ๐—ด๐—ด๐—ฒ๐—ฟ๐˜€ ๐—ถ๐—ป ๐—ฆ๐—ค๐—Ÿ ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ฒ๐—ฟ

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1 min read
๐Ÿ—ƒ๏ธ Structured Query Language (SQL): The Backbone of Modern Databases 2025
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๐Ÿ—ƒ๏ธ Structured Query Language (SQL): The Backbone of Modern Databases 2025

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2 min read
I Made a Detective Game That Teaches You SQL
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I Made a Detective Game That Teaches You SQL

1
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2 min read
Mastering SQLite: Efficient Database Management Tips
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Mastering SQLite: Efficient Database Management Tips

3
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3 min read
๐Ÿ› ๏ธ Copying and Moving Data Between Tables in ClickHouse (with Different Engines)
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๐Ÿ› ๏ธ Copying and Moving Data Between Tables in ClickHouse (with Different Engines)

7
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2 min read
Filtering Data in SQL: Using WHERE, AND, OR, and NOT
Cover image for Filtering Data in SQL: Using WHERE, AND, OR, and NOT

Filtering Data in SQL: Using WHERE, AND, OR, and NOT

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1 min read
Mastering SQL for Data Engineering: Advanced Queries, Optimization, and Data Modeling Best Practices
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Mastering SQL for Data Engineering: Advanced Queries, Optimization, and Data Modeling Best Practices

1
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10 min read
Get Total Count of Tables per Database in MySQL

Get Total Count of Tables per Database in MySQL

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1 min read
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