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

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Demystifying Normalization in RDBMS: From 1NF to 3NF
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Demystifying Normalization in RDBMS: From 1NF to 3NF

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5 min read
Understanding the Difference Between Subquery, CTE, and Stored Procedure

Understanding the Difference Between Subquery, CTE, and Stored Procedure

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3 min read
💾 ACID Properties

💾 ACID Properties

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2 min read
🚀 Understanding Indexing in Oracle (B-Tree, B+ Tree, Hash Cluster) Indexes are one of the most important concepts in databases.

🚀 Understanding Indexing in Oracle (B-Tree, B+ Tree, Hash Cluster) Indexes are one of the most important concepts in databases.

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3 min read
📝 Understanding Transactions, Deadlocks & Log-Based Recovery in SQL 💾

📝 Understanding Transactions, Deadlocks & Log-Based Recovery in SQL 💾

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2 min read
Similarities Between a Stored Procedure in SQL and a Function in Python

Similarities Between a Stored Procedure in SQL and a Function in Python

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3 min read
TIL: Temp table vs CTE

TIL: Temp table vs CTE

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1 min read
Understanding PL/SQL Collections: Associative Arrays, Nested Tables, and VARRAYs

Understanding PL/SQL Collections: Associative Arrays, Nested Tables, and VARRAYs

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3 min read
isql

isql

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1 min read
База Данных 5 Views

База Данных 5 Views

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3 min read
Building a Hybrid Site Generator with Go + SQLite
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Building a Hybrid Site Generator with Go + SQLite

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1 min read
AI-Driven SQL Dataset Optimization 202509: REEF&text2SQL4PM
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AI-Driven SQL Dataset Optimization 202509: REEF&text2SQL4PM

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4 min read
Free SQL courses for beginners in 2026
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Free SQL courses for beginners in 2026

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4 min read
Build a Customer Support AI Agent with smolagents + InterSystems IRIS (SQL, RAG & Interoperability)

Build a Customer Support AI Agent with smolagents + InterSystems IRIS (SQL, RAG & Interoperability)

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5 min read
Clean Code in ETL:How Python, Go, and SQL Each Teach You to Think Differently
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Clean Code in ETL:How Python, Go, and SQL Each Teach You to Think Differently

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3 min read
MySQL学习

MySQL学习

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2 min read
Entendendo Flyway

Entendendo Flyway

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2 min read
Understanding MySQL Backup Consistency: A Practical Example

Understanding MySQL Backup Consistency: A Practical Example

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2 min read
Understanding Primary Keys in Relational Databases: A Key to Data Integrity and Fast Lookups

Understanding Primary Keys in Relational Databases: A Key to Data Integrity and Fast Lookups

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3 min read
The Missing Layer Between Data and AI Agents
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The Missing Layer Between Data and AI Agents

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13 min read
🗄️ SQLite3 in Python
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🗄️ SQLite3 in Python

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4 min read
Database troubleshooting for Umami

Database troubleshooting for Umami

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6 min read
Stop Waiting for the Cloud: Building a Hybrid SQL+Python Data Pipeline Locally with DuckDB
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Stop Waiting for the Cloud: Building a Hybrid SQL+Python Data Pipeline Locally with DuckDB

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5 min read
When Your Database Became a Library: Guide to PostgreSQL Indexes
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When Your Database Became a Library: Guide to PostgreSQL Indexes

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13 min read
How We Reduced 98.9% Load Time for a Tableau Dashboard: Optimizing OR Conditions with the IN Function

How We Reduced 98.9% Load Time for a Tableau Dashboard: Optimizing OR Conditions with the IN Function

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7 min read
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