Uses PolyBase to query external data sources like Oracle, MongoDB, and Hadoop without moving the data.

Developers can use SQL Server 2019 Big Data Clusters to manage large-scale data environments using Apache Spark and Hadoop Distributed File System (HDFS).

| Feature | Availability | |---------|--------------| | Partitioning | ✅ | | In-Memory OLTP | ✅ | | Always Encrypted (with secure enclaves) | ✅ | | PolyBase (query external data) | ✅ | | Big Data Clusters (BDC) | ✅ | | Machine Learning Services (R/Python) | ✅ | | Data Virtualization | ✅ | | Stretch Database | ❌ (deprecated) |