What is ETL Testing?

ETL stands for Extract, Transform, and Load. It is the process of extracting data from source systems, transforming it into a uniform data type, and loading it into a central repository. FITA Academy's ETL Testing Online Training will be your career-establishing course.

The ETL testing process ensures that data is transferred from disparate sources to a unified repository under transformation rules and meets all requirements. The procedure also aids in detecting and correcting flaws and errors.

Types of ETL Testing:

ETL testing ensures error-free data transfer from the source to the target system. It is intended to address challenges and nuances in the ETL cycle. At various stages, various types of tests are carried out.

Production Validation Testing:

The test verifies the data that has been transferred to the production system. It entails validating and comparing data in the production system to source data.

Source to Target Data Testing:

The data values from the source system are compared to data from the target system. Testing source-to-target data is a time-consuming process critical for financial and banking projects.

Source to Target Count Testing:

This test is run to see if the data count in the source system matches the data loaded in the target system. The test estimates the likely outcome but is not always accurate or reliable.

Metadata Testing:

This test verifies data types, lengths, indexes, and constraints.

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Performance Testing:

The test ensures that the loaded data is received within the specified time frame. It also determines whether the system is capable of managing the current user traffic and increasing the number of users accessing those ETL data.

Data Transformation Testing:

The test determines whether the data is transformed under business requirements and SOPs. The tester executes multiple SQL queries for each row and compares the results to the destination data.

Data Quality Testing:

This test ensures that the ETL application rejects default values and reports incorrect information. A tester runs Syntax Tests to invalid flag characters, patterns, incorrect case orders, etc. It runs reference tests to ensure that the data is consistent with the overall architectural design.

Conclusion:

Now you would have understood the Types of ETL Testing. So, to have a profound understanding of ETL testing, you can join ETL Testing Course Online and learn its benefits, features and other concepts.