Mastering DISTINCT in MySQL: Finding and Counting Unique Values скачать в хорошем качестве

Mastering DISTINCT in MySQL: Finding and Counting Unique Values

In this tutorial, we'll show you how to use the DISTINCT statement in MySQL to retrieve unique values from your database, and how to use the DISTINCT COUNT function to count the number of distinct values in a column. We'll cover everything from the basics of the DISTINCT keyword to more advanced techniques for working with large data sets and complex queries. If you're new to MySQL, the DISTINCT statement is a powerful tool that allows you to filter out duplicate values from your query results. We'll start by showing you how to use the SELECT DISTINCT syntax to retrieve unique values from a single column, and then we'll move on to more complex examples that involve multiple columns and table joins. Once you have a solid understanding of the DISTINCT statement, we'll show you how to use the DISTINCT COUNT function to count the number of unique values in a column. This function is incredibly useful for data analysis, and it can help you identify patterns and trends in your data that might not be apparent from a simple count. If you liked this video, please check my ebook available on Gum Road. Link: https://thenadcoder.gumroad.com/l/mas... The ebook contains Commonly Used SQL Queries Common Interview Questions Resume and Linkedin Tips Resume Template Check out other my other videos on this channel How to pass Tableau CRM / CRM Analytics Certification: https://tinyurl.com/msnuy5a3 How to pass Salesforce UX Designer Certification: https://tinyurl.com/2exbrc7c How to Pass Business Analyst Certification: https://tinyurl.com/253s8mmz Salesforce Business Analyst Certification: https://tinyurl.com/mrp2hdzc Day in the Life of a Salesforce Business Analyst: https://tinyurl.com/ymntazz6 Tech Careers that do not require Coding Skills: https://tinyurl.com/4z8fyzzt Are you interested in learning CRM Analytics or Tableau CRM, then I have an entire playlist for you. You can learn CRM Analytics in 10 days. Complete CRM Analytics Training Course: https://tinyurl.com/4da8ya4t Connect with me: Linkedin:   / sujaynadkarni   Instagram:   / thenadcoder