-- Question 1: Describe different types of data sources used in ETL with suitable examples. /* ETL can extract data from many kinds of sources, and each source has its own structure and extraction ...

Python orchestration instead of manual SQL execution Docker setup so anyone can run it in 45 seconds Automated validation that fails fast if data is missing Type hints because I kept breaking things ...

PolyBase, a data virtualization feature for SQL Server, allows users to seamlessly query data from various external sources directly using T-SQL (Transact-SQL) without the need for separate client ...