In-Memory Column Store in Oracle Database 12C
The In-Memory Column Store feature enables objects (tables, partitions, and other types) tobe stored in memory in a new format known as the columnar format. This format enablesscans, joins, and aggregates to perform much faster than the traditional on-disk format The In-Memory Column Store (IM column store) was the headline feature of the 12.1.0.2 patchset. …