PostgreSQL WINDOW FUNCTIONS For Data Analysis

person icon Nguru Bretton Gitonga

PostgreSQL WINDOW FUNCTIONS For Data Analysis


updated on icon Updated on Sep, 2023

language icon Language - English

person icon Nguru Bretton Gitonga

architecture icon Development,Database Design & Development,Data Analysis


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Course Description

We hope you enjoy your time here in this project-based seminar on PostgreSQL Window Functions for Analytics. This is a project that will teach users of POSTGRES how to use window functions to get information from a database, and it is designed to be done by hand.

You will walk away from this lesson having gained an understanding of how to apply a variety of window functions in order to extract the result you want from a database. You will learn how to modify data with PostgreSQL window methods like as ROW NUMBER(), RANK(), and DENSE RANK() through the course of working on this project (). In addition to that, we will discuss the application of aggregate window functions. In order to query this database, we will make use of these window functions in conjunction with the OVER() clause.

Learn step-by-step

In a video that plays on a split-screen with your work area, your instructor will walk you through these steps:

  1. Getting Started

  2. Database Set up

  3. Ranking



Students of all skill levels will find it simple and uncomplicated to understand and participate in the instruction. Invest in yourself and grow professionally by being familiar with Window Functions the use of straightforward examples that are presented in detail.


What will you learn in this course:

  • DENSE_RANK which Ranks the current row within its partition without gaps.

  • They will also learn about ROW_NUMBER

  • They will also learn about RANK

  • We will have examples on the RANK, ROW_NUMBER & DENSE_RANK


What are the prerequisites for this course?

  • To complete this course you need some knowledge of SQL Queries.

PostgreSQL WINDOW FUNCTIONS For Data Analysis


Check out the detailed breakdown of what’s inside the course

PostgreSQL WINDOW FUNCTIONS For Data Analysis
7 Lectures
  • play icon Introduction 02:27 02:27
  • play icon Database Set up 03:19 03:19
  • play icon Row Number Function 06:28 06:28
  • play icon Rank Window Function 04:45 04:45
  • play icon DENSE Rank WINDOW Function 07:40 07:40
  • play icon Rank Question Practice Question 05:05 05:05
  • play icon Common Table Expressions 05:40 05:40

Instructor Details

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Nguru Bretton Gitonga

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