Data Warehouse Testing
                     Data Warehouse Testing
Make sure the sanctity of your data is preserved and avoid data related 
risks.
What is Data Warehouse Testing?
The process of verifying the entire data warehouse landscape for data accuracy, data 
completeness, data integrity, and data quality is called Data Warehouse Testing.
Data Warehouse Testing Challenges
• Testing a data warehouse with a high volume of 
Data.
• Comparing data across heterogeneous data 
sources.
• Testing across multiple environments.
• Testing a Business Intelligence (BI) Report.
• The inability to identify data issues on time.
Type of Data Warehouse Testing Checks
Source data validation -  This test is to ensure that 
 the data in the source table or file does not have any 
Data Quality or Data Accuracy issues.
Source to target reconciliation - This Data 
Warehouse test is for Data Completeness 
between source and target when there is not 
transformation involved, and it is a one to one 
load.
ETL reconciliation - Testing the Data 
Warehouse for any Data Transformation, 
Conversion, or Calculation issues is crucial to 
ensure Data Completeness. 
Type of Data Warehouse Testing Checks
Business validation - The purpose is to ensure 
that data is not breaking any business rules 
even if the ETL has loaded the table successfully.
Business reconciliation - Ensuring that 
data between two subject areas is 
consistent and is not breaking any 
business rule is one of the Data 
Warehouse testing check users perform.
Five Things to Look For in Data Warehouse Testing 
Tool
High data Test across 
volume Regression data sources
testing testing
Integration Reportin
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Use iCEDQ for Data Warehouse Testing
• Test 100% of the data in your Data Warehouse and identify 
any data issues using our in-memory engine or the Apache 
Spark engine. 
• Users can connect to different data sources, be it a 
database, file source, or a reporting tool, and validate and 
compare data across them.
• Create test suites for regression testing, release 
management testing, or for reusing the same Data 
Warehouse tests across multiple environments.
• Integrate iCEDQ with your test management tool like HP 
ALM, ticketing systems like JIRA, or CICD tools like Jenkins 
using our Rest API or CLI utilities.
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