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ETL/ Data Warehouse Testing

Gurukul, Ahmedabad


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About the Course

Course Overview & Benefits:
Managing a business in today's dynamic world has never been easy. The challenge is to do more with less and to make better decisions than competitors. Having constant access to current, actionable information has become need of time. The best decisions are made when all the relevant data is available and the best possible source for that data is a well-designed data warehouse.

A data warehouse is a database that is specifically designed to produce information for reporting and analysis. "Reporting and analysis" can be anything from listings of sales figures, to hi-tech dashboards, email alerts, ad-hoc reporting and drill-up, drill-down analytics. Data is extracted periodically from the applications that support business processes and copied onto special dedicated computers. There it can be validated, reformatted, reorganized, summarized, restructured, and supplemented with data from other sources. The resulting data warehouse becomes the main source of information for report generation, analysis, and presentation through ad-hoc reports and dashboards.

Topics Covered

1. Data Warehousing Concepts
• Data Warehouse Concepts, Design.
• Need of Data Warehouse.
• Introduction to OLTP, ETL and OLAP Systems.
• Data Warehousing Architecture.
• Dimensional Modeling.
• Data Marts and ODS.
• Star Schema and Snowflake Schema.
• SCD (slowly changing dimension).
• Types of Fact and Dimension Tables.
2. SQL Concepts
• Introduction to Oracle.
• Basic Concepts in SQL.
• Data Types.
• Select statement usage.
• Joins.
• Sub Queries.
• Performance Tuning Tips & Tricks.
3. ETL Testing – Introduction
• Introduction to ETL.
• ETL Architecture.
• What is the use of testing?
• What is quality & standards?
• Responsibilities of ETL Tester.
• Sub Queries.
• Performance Tuning Tips & Tricks.
4. ETL Testing – Procedure
• Steps in DWH Testing
• Prerequisites of DWH Testing.
• Levels of DWH Testing
• The Data Warehousing process
• Coverage of ETL Testing
• How DWH Testing is Different from Application Testing?
• Challenges in DWH Testing
5. Testing Methodologies.
• ETL Testing WorkFlow Process.
• How to Prepare the ETL Test Plan.
• How to design the Testcases in ETLTesting.
• How to report the Bugs in ETL Testing.
• ETL Testing Responsibilities.
• How to detect the bugs through database queries.
• ETL Performance Testing
6. BO and Reports
• Overview
• Reports Testing Process
• Components of BO Testing
7. Query and tools
• Informatica, Datastage, Cognos etc.
8. Conclusion

Who should attend



• Knowledge of Manual Testing
• Knowledge of SQL

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About the Trainer

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Our Consultant


Our Consultant, has over 10 years of experience with more emphasis on Backend / Data Warehouse (DWH) / ETL Testing and Production Support. He has rich experience in Reporting tools like Cognos and ETL testing tool likes Informatica & WhereScape.
Has experience in working with companies like, TechMahindra, Capgemini and Secure Meters and has been involved in all sort of deliverables; right from requirement gathering, estimation, planning , readiness and execution, with regular status updates.

Course Id: 8669