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DatabricksWhat the lakehouse actually is, how Delta Lake adds ACID transactions to cheap object storage, and the medallion architecture in practice.
IcebergThe feature lists have converged. What still differs is metadata structure, catalog architecture, and engine support, and those are what decide which format fits your stack.
DatabricksHow the _delta_log actually works: JSON commits, optimistic concurrency, checkpoints, deletion vectors, and the small-file problem nobody escapes.