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 […]