Delta Lake Architecture Explained: A Complete Guide If you’ve ever tried to run two jobs against the same S3 or ADLS folder at the same time, you already know why Delta Lake exists. Plain files in a data lake don’t know what a transaction is. […]
What Is Delta Lake? Complete Beginner’s Guide Before formats like Delta Lake existed, a “data lake” was really just a folder of Parquet or CSV files in cloud storage, and that folder had none of the guarantees you’d expect from an actual database table. A […]
Apache Iceberg Tutorial for Beginners For years, a “data lake” table meant a folder full of Parquet files and a lot of hope. There was no real schema enforcement, no way to safely have two jobs write to the same table at once, and adding […]