Testing is Questioning a system in order to evaluate it!

ETL Testing

ETL Testing

Organizations with organized IT practices are looking forward to create a next level of technology transformation. They are now trying to make themselves much more operational with easy-to-interoperate data. Having said that data is most important part of any organization, it may be everyday data or historical data. Data is backbone of any report and reports are the baseline on which all the vital management decisions are taken.

Most of the companies are taking a step forward for constructing their data warehouse to store and monitor real time data as well as historical data. Crafting an efficient data warehouse is not an easy job. Many organizations have distributed departments with different applications running on distributed technology. ETL tool is employed in order to make a flawless integration between different data sources from different departments. ETL tool will work as an integrator, extracting data from different sources; transforming it in preferred format based on the business transformation rules and loading it in cohesive DB known as Data Warehouse.

We are covering the following topics:

Data Ware Housing Concepts
Data Acquistion
Data Base Design
Star Schema
Snow Flake Schema
Fact constellation Schema
Advanced calculations explanation
SCD(slowly changing dimension)
Type-1 SCD
Type-2 SCD
Type-3 SCD
.

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