| Feature | Data Lake | Delta Lake | Delta Lakehouse |
|---|---|---|---|
| Storage Type | Raw data in various formats | Structured/unstructured data with ACID | Unified storage for all data types |
| ACID Transactions | No | Yes | Yes |
| Schema | Schema-on-read | Schema enforcement and evolution | Enforced schema for performance |
| Data Processing | Batch processing | Unified batch and streaming | Real-time analytics |
| Performance | Can be slower | Optimized performance | High performance for analytics |
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