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 vs Delta Lake Both formats set out to solve the same problem: a folder of Parquet files in object storage isn’t a table, it has no atomic writes, no consistent view during concurrent access, and no schema guarantees. Apache Iceberg and Delta Lake […]