Mergaerts and Vanstechelman present a guide for people who want to become administrators of the SAP HANA database, which is a column-store in-memory database, they say, capable of handling huge amounts of memory in real time, and allowing users to deploy online transaction processing and online analytical processing applications in the same database without the need to duplicate data in aggregates. Their topics include administration tools, instance administration, scale-out systems and high availability, installation and updates, and monitoring and troubleshooting. Annotation �2021 Ringgold, Inc., Portland, OR (protoview.com)