ETL vs ELT: Production Tradeoffs, Modern Lakehouse Patterns, and Interview-Ready Reasoning
A production-focused guide to ETL vs ELT that explains where transformations run, how that impacts cost, governance, and latency, and how to justify the right choice in system design interviews.
Data Migration Strategies
Techniques for migrating data between different schemas and systems
ETL vs ELT
Extract-Transform-Load vs Extract-Load-Transform patterns