SQL Mathematical Functions

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В этом Проект с консультациями вы:

Understand how SQL Mathematical functions work and when to use them

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

Clock2 hours
IntermediateУчащийся среднего уровня
CloudЗагрузка не требуется
VideoВидео на разделенном экране
Comment DotsАнглийский
LaptopТолько для ПК

Welcome to this project-based course, SQL Mathematical Functions. In this project, you will learn how to use SQL Mathematical Functions to manipulate tables in a database. By the end of this 2-hour-long project, you will be able to use different Mathematical Functions to retrieve the desired result from a database. In this project, you will learn how to use SQL Mathematical Functions like CEIL(), FLOOR(), RANDOM(), SETSEED(), ROUND(), TRUNC(), SQRT(), CBRT(), and POWER() to manipulate data in the employees database. In this project, we will move systematically by first introducing the functions using a simple example. Then, we will write slightly complex queries using the Mathematical Functions in real-life applications. Also, for this hands-on project, we will use PostgreSQL as our preferred database management system (DBMS). Therefore, to complete this project, it is required that you have prior experience with using PostgreSQL. Similarly, this project is an intermediate SQL concept; so, a good foundation for writing SQL queries is vital to complete this project. If you are not familiar with writing queries in SQL and want to learn these concepts, start with my previous guided projects titled “Querying Databases using SQL SELECT statement," and “Performing Data Aggregation using SQL Aggregate Functions.” I taught these guided projects using PostgreSQL. So, taking these projects will give the needed requisite to complete this SQL Mathematical Functions project. However, if you are comfortable writing queries in PostgreSQL, please join me on this wonderful ride! Let’s get our hands dirty!

Навыки, которые вы получите

  • Operators
  • Aggregate Functions
  • Postgresql
  • Database Querying
  • Mathematical Functions

Будете учиться пошагово

На видео, которое откроется рядом с рабочей областью, преподаватель объяснит эти шаги:

  1. Getting Started: Retrieve data from tables in the employees database

  2. Use the CEIL() & FLOOR() functions to retrieve data from tables in the employees database

  3. Use the RANDOM() & SETSEED() functions to retrieve data from tables in the employees database

  4. Use the ROUND() & TRUNC() functions to retrieve data from tables in the employees database

  5. Use the ROUND() function in more real-life applications

  6. Use the SQRT() & CBRT() functions to retrieve data from tables in the employees database

  7. Use the POWER() function to retrieve data from tables in the employees database

Как устроены проекты с консультациями

Ваше рабочее пространство — это облачный рабочий стол в браузере. Ничего не нужно загружать.

На разделенном экране видео преподаватель предоставляет пошаговые

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