Oracle Announces Availability of Oracle Exalytics In-Memory Machine

Oracle Announces Availability of Oracle Exalytics In-Memory Machine

Columnar compression in TimesTen

In this article I would like to write about Columnar Compression in TimesTen.

Oracle TimesTen 11.2.2 introduced several new features. One of them it’s Columnar Compression. Tables could be compressed at the column level, which stores data more efficiently.

The compression unit in Timesten is a compressed column group. A compressed column group consists of set of columns. You can include one or more columns in compressed column group; however, a column can be included in only one compressed column group. Each compressed column group is limited to a maximum of 16 columns.