Articles Cookbook
10 Jan 2024
LearnSQL.com Team

2024 Monthly SQL Practice: New Challenges

Ready to boost your SQL skills in 2024? LearnSQL.com’s Monthly SQL Practice offers new courses and real-world exercises for all levels. Ready to elevate your SQL skills in 2024? LearnSQL.com’s Monthly SQL Practice returns this year with fresh, real-world exercises designed to keep your SQL sharp. Whether you're just starting out or already well-versed in SQL, our practice challenges offer a structured way to develop your expertise each month. With two new course releases—2023 Monthly SQL Practice Sets - Basic and 2023 Monthly SQL Practice Sets - Advanced—you'll have plenty of opportunities to refine your SQL knowledge this year.
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9 Jan 2024
Alexandre Bruffa

Using SQL in Data Warehousing

SQL is a key player in organizing and analyzing data in data warehouses. In this article, I'll introduce you to the basics of SQL in data warehousing. We’ll learn how this powerful language helps manage large datasets, making your work easier and more productive. Whether you're a student diving into the world of technology or an experienced specialist navigating the domain of data, understanding the concept of data warehousing is fundamental.
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4 Jan 2024
Jakub Romanowski

Analyzing Social Media Data with SQL

Diving into the world of SQL social media analysis? This guide will help you start using SQL to analyze and interpret data from social media platforms. Get ready to transform your approach to digital data and unlock new possibilities in social media analytics! Welcome to the exciting world of SQL and social media analysis! If you're new to this field, you're about to discover how powerful a tool SQL can be in understanding the vast sea of data generated on social media platforms every day.
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2 Jan 2024
Maria Durkin

SQL and Power BI: Transforming Data into Insights

The need for powerful tools that enable efficient data analysis and visualization has never been greater. Enter SQL and Power BI, a potent duo that enables businesses to maximize the value of their data assets. First, let’s explain what SQL and Power BI are; then we’ll discuss how and why they make such a great pair. SQL, or Structured Query Language, allows you to communicate with databases, making it the foundation of data management.
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1 Jan 2024
Jakub Romanowski

Course of the Month: SQL Practice - Running

Kick off the new year and enhance your SQL skills with January’s free Course of the Month, Basic SQL Practice: Run Track Through Queries! As the new year unfolds, it's a time for reflection and the setting of new goals. A popular resolution among professionals and students alike is to acquire new skills or deepen existing ones. Whether it's learning a new language, mastering a software tool, or enhancing your job qualifications, the start of a new year provides a fresh opportunity for personal and professional growth.
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26 Dec 2023
Tihomir Babic

SQL Query Practice: 20 Exercises for Beginners

These 20 exercises are just what beginners need for SQL query practice. Try to solve each of them, and then look at the solutions. If something needs to be clarified, there are explanations for each solution. In this article, there’ll be less talking than usual. Instead, you’re going to write the answers to SQL practice exercises. (Don’t worry; we’ve included the solutions if you get stuck.) The whole point is to give you, as a beginner, plenty of opportunities for SQL query practice.
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22 Dec 2023
LearnSQL.com Team

New Monthly SQL Practice for January 2024!

In our January 2024 SQL Practice, you’ll meet Julie. She is the owner of an online store where she sells handmade crochet items. She has hired you to help her with data analysis to grow her business. What are the best-selling products? Which products bring the most revenue? Can you create reports to help her with sales trends? You will find all the answers in the data. You just need to figure out how to get them out of the database using SQL.
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18 Dec 2023
Ignacio L. Bisso

Can You Use Multiple WITH Statements in SQL?

A comprehensive guide to multiple WITH statements in SQL, perfect for beginners and experts alike. The SQL WITH clause allows you to define a CTE (common table expression). A CTE is like a table that is populated during query execution. You can use multiple WITH statements in one SQL query to define multiple CTEs. In this article, we will explain how to define multiple CTEs in a single query.
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12 Dec 2023
Martyna Sławińska

SQL Subquery Practice: 15 Exercises with Solutions

Subqueries are often challenging for beginners. Practice makes perfect, so join us as we work through these 15 SQL subquery practice exercises! In SQL, a subquery is a query nested within another query. It simplifies building intricate queries to retrieve data that meets specific conditions from various tables. In this article, we present various ways of employing subqueries to create complex queries. We start by introducing SQL subqueries along with common use cases.
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7 Dec 2023
Jakub Romanowski

Free SQL Courses to Elevate Your Skills

In this article, I'll explain why LearnSQL.com offers free SQL courses. I’ll also introduce you to some of the courses we’ve offered for free over the years. If you're eager to enhance your SQL skills without breaking the bank, you've come to the right place. You're here because you understand the significance of learning SQL. But are you tired of those lengthy YouTube tutorials? How about diving into an online SQL course?
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