Скачать или смотреть Spark SQL - Windowing Functions - Introduction

As part of this session, we will see advanced operations such as aggregations, ranking, and windowing functions within each group using clauses such as OVER, PARTITION BY etc. We will also build a solution to the problem and run it on a multinode cluster.

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Window Functions – Overview
Problem Statement – Get top n products per day
Performing Aggregations
Using Windowing Functions
Ranking Functions
Development Life Cycle

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