Introduction to SQL Window Functions

ofrecido por
Coursera Project Network
En este proyecto guiado, tú:

Understand how SQL window functions work and when to use them

Understand how the ORDER BY and PARTITION BY clauses work with the OVER() clause

Manipulate data in tables using SQL SELECT statements together with window functions

Clock2 hours
IntermediateIntermedio
CloudNo se necesita descarga
VideoVideo de pantalla dividida
Comment DotsInglés (English)
LaptopSolo escritorio

Welcome to this project-based course Introduction to SQL Window Functions. This is a hands-on project that introduces SQL users to the world of window functions. In this project, you will learn how to explore and query the project-db database extensively. We will start this hands-on project by retrieving the data in the table in the database. By the end of this 2-hour-and-a-half-long project, you will be able to use different window functions to retrieve the desired result from a database. In this project, you will learn how to use SQL window functions like ROW_NUMBER(), LEAD(), LAG(), and FIRST_VALUE() to manipulate data in the project-db database. These window functions will be used together with the OVER() clause to query this database.

Habilidades que desarrollarás

  • Data Manipulation
  • Join (Sql)
  • Select (Sql)
  • Postgresql
  • Window Function

Aprende paso a paso

En un video que se reproduce en una pantalla dividida con tu área de trabajo, tu instructor te guiará en cada paso:

  1. Getting Started

  2. ROW_NUMBER() - Part One

  3. ROW_NUMBER() - Part Two

  4. PARTITION BY

  5. PARTITION BY With CTE

  6. Fetching: LEAD() & LAG()

  7. FIRST_VALUE() - Part One

  8. FIRST_VALUE() - Part Two

Cómo funcionan los proyectos guiados

Tu espacio de trabajo es un escritorio virtual directamente en tu navegador, no requiere descarga.

En un video de pantalla dividida, tu instructor te guía paso a paso

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