INTERVIEW PREP-ETL testing|Automation|SQL with Plabani Mojumder

🚀 Interview Prep – ETL Testing | Automation | SQL

Preparing for an ETL Testing / Data Testing / Data QA interview?

This practical interview-preparation program is designed to help experienced QA and ETL professionals prepare for real-time interview questions, SQL problems, ETL scenarios, and automation discussions.

🎯 What You Will Learn

🔹 ETL Testing

• End-to-End ETL testing concepts
• ETL Automation testing discussion ,Automating data
• Source-to-Target validation
• Row count & column count validation
• Data completeness and accuracy
• Duplicate and NULL validation
• Primary/Foreign Key validation
• Data reconciliation
• Transformation validation
• Real-time ETL testing scenarios
• Production issue and defect-based questions

🔹 SQL Interview Preparation

• Joins and Subqueries
• GROUP BY & HAVING
• CASE statements
• Window Functions
• CTEs
• Duplicate identification
• Missing records
• Source vs Target comparison
• Aggregation and reconciliation queries
• Real-time SQL interview problems

🔹 ETL Automation

• Why automate ETL testing?
• Python fundamentals required for ETL automation
• Reading CSV/Excel files using Python
• Database connectivity using Python
• Source-to-target data comparison
• Automated validation framework
• PySpark basics for data validation
• Automated test execution and reporting
• Allure reporting
• Real-time automation scenarios

💡 Real-Time Interview Focus

You will also learn how to explain your project and automation framework during an interview, including:

• Project architecture
• Testing approach
• Validation strategy
• Automation framework design
• Handling large-volume data
• Defect analysis
• Reconciliation failures
• CI/CD and reporting discussions
• Scenario-based interview questions

👨‍💻 Who Is This For?

✔ ETL Testing Professionals

✔ Data QA Engineers

✔ Automation Test Engineers

✔ ETL Developers moving into Testing

✔ QA Engineers preparing for Data Engineering/ETL interviews

✔ Professionals with SQL + ETL experience looking for practical interview preparation

⚡ Prerequisites

Basic knowledge of:

• SQL
• ETL Testing
• Python fundamentals
• Database concepts

This is an interview-focused program, not a beginner-level programming course.

🎓 Outcome

By the end of the program, you should be able to confidently handle ETL Testing, SQL, Data Validation, Python Automation, and real-time scenario-based interview questions and explain your project experience clearly.

Learn the concepts. Practice real-time scenarios. Build interview confidence. 🚀