# Samples for specific SQL Server and Azure SQL features

[In-Memory OLTP](features/in-memory)

In-Memory OLTP can significantly improve performance of transaction processing in SQL Server and Azure SQL Database. It is a memory-optimized database engine integrated into the database engine, optimized for OLTP. With In-Memory OLTP you can increase the transaction throughput by up to 30 times, depending on the specifics of the workload.

[Master Data Services](features/master-data-services)

Master Data Services (MDS) is the SQL Server solution for master data management. Master data management (MDM) enables you organization to discover and define non-transactional lists of data, and compile maintainable, reliable master lists.

[R Services](features/r-services)

SQL Server R Services brings R processing close to the data, allowing more scalable and more efficient predictive analytics.