OLAP Operations – 1 – HackerRank Solution

In this post, we will solve OLAP Operations – 1 HackerRank Solution. This problem (OLAP Operations) is a part of HackerRank Databases series.

Task

Solution – OLAP Operations – 1 – HackerRank Solution

Correct Answer – roll-up

Note: This problem (OLAP Operations) is generated by HackerRank but the solution is provided by CodingBroz. This tutorial is only for Educational and Learning purpose.