What is Columnar Storage?

Get an introduction to columnar storage, and see how it can be used in InterSystems IRIS® data platform to improve the speed of your analytic queries and efficiently store data.

[@ament4069]

It helped me a lot. ❤

[@madhavanrangarajan2728]

Best video on the topic !

[@kiran36992]

With index on OrderDate and Amount, it's not needed to read entire row. With OLAP the combination of columns needed is not predefined and can vary, results in need for too many indexes on a table. This is where columnar db becomes useful.