Practice & Examples

Looking to improve your coding skills with real-world exercises? You’ve come to the right place! This section provides hands-on coding challenges and practical examples to help you master Python, SQL, and Apache Airflow.

💡 What’s Inside?

🏆 Python Practice – Solve real-world Python exercises with explanations.
🔍 SQL Queries & Use Cases – Test your SQL skills with practical queries.
⚙ Apache Airflow Examples – Learn DAG automation through hands-on scenarios.
📝 Problem-Solving Challenges – Strengthen your logic with interactive coding tasks.

✅ Test your skills, build confidence, and improve your coding efficiency!

Coding Guide, Practice & Examples

🔍 RANK(), DENSE_RANK(), and ROW_NUMBER() in SQL – Explained with Real-World Scenarios

In SQL, ranking functions are essential for assigning order or rank to records based on specific criteria. The most commonly used ranking functions are: Understanding how these functions work and…

2025

Coding Guide, Practice & Examples

Exercise – SQL Part 2 🛢️

💡 Scenario:You’re analyzing customer purchases at an e-commerce company. The dataset includes order transactions, and your manager wants the following insights using Level 2 SQL techniques: 📌 Database Schema (orders)…

2025

Coding Guide, Practice & Examples

Exercise – SQL 🛢️

Basic SQL Queries 1. Select All Data Task: Retrieve all columns from the employees table. 2. Select Specific Columns Task: Retrieve only the name and position columns from the employees…

2024