BI Stack ETL training covers Data Warehousing’s Extract, Transform and Load Processes. Data from various applications created and maintained by many vendors, managed and administered by various individuals, hosted by various technologies, is extracted by ETL and placed in staging tables. Loading Data into the Destination system, typically the Snowflake Cloud Data Warehouse, where it can be used for business intelligence and reporting purpose.
ETL (Extract/Transform/Load) is a procedure that extracts data from source systems, converts the information into a consistent data type, and then loads the data into a single repository. ETL testing is the procedure for checking, confirming, and certifying data while avoiding duplicate records and data loss. ETL testing is distinct from data reconciliation used in database testing in that it is used to data warehouse systems and utilised to gather pertinent data for analytics and business intelligence.