Underlying Oracle Database In-Memory is a unique in-memory dual format that avoids the trade-offs inherent in single-format databases and enables both superfast analytics and online transaction processing (OLTP). This session explains how the In-Memory column is allocated, when and how data is populated into it, and provides details on the key performance enhancing features that come with it including in-memory data compression, scans, joins aggregations and storage indexes. We will also demonstrate how to monitor and manage the In-Memory column store via new v$ performance views and data dictionary tables.