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Articles
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23 Oct 2023
Jakub Romanowski
This Is the Best SQL Assessment to Boost Your Career
What’s an SQL assessment and why would you need one? Where can you find a free and reliable gauge of your SQL skills? Find out in this article. In today's data-driven world, proficiency in SQL is more than just a skill—it's necessary. Whether you're looking to explore and analyze data to derive actionable insights or to store, manage, and optimize data in a relational database, having a solid foundation in SQL can significantly boost your resume.
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19 Oct 2023
Tihomir Babic
Top 29 SQL Server Interview Questions
Looking for an SQL Server job? Review these 29 must-know SQL Server interview questions and you’ll be well-prepared. And don’t worry about looking up the answers – we provide them, too! Microsoft SQL Server's first version was released in 1989 and has a rich history. It has come a long way since then, becoming one of the most used database engines in the data industry. In the last ten years, it’s been the third most popular database engine.
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17 Oct 2023
Nicole Darnley
How to Create Your Own Database to Practice SQL
Welcome to the step-by-step guide to creating your own SQL database from scratch, designed with beginners in mind. This guide not only helps you set up your database but also introduces you to essential SQL practice exercises to get you started on your learning journey. Follow along to gain SQL hands-on practice and foster a deeper understanding of SQL functionalities. Set a solid foundation for more advanced SQL training!
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12 Oct 2023
Dominika Florczykowska
What Does ORDER BY 1 Mean in SQL?
Have you ever seen the "ORDER BY 1" syntax in SQL queries and wondered what it means? In this article, we'll explore this syntax, clarify its purpose, and make it easier to grasp. Whether you're an experienced SQL user or just starting to explore this language, you've likely encountered the ORDER BY clause before. In SQL, the ORDER BY clause is used to sort the rows in a table based on one or more columns.
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10 Oct 2023
Martyna Sławińska
5 Easy SQL INNER JOIN Examples for Beginners
Looking for a clear explanation of joins in SQL? Check out these five SQL INNER JOIN examples! In SQL, INNER JOINs can be a bit difficult for beginners to master. But once you start working with them, you’ll learn they’re very useful! Let’s discuss five examples of SQL INNER JOINs. But first, let’s do a quick review of why JOINs matter. In relational databases, data is organized and stored within tables.
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5 Oct 2023
Jill Thornhill
BigQuery Window Functions Explained
Keeping up with data analysis trends gives your organization – and your CV – the cutting edge. In this article, we'll look at BigQuery window functions and how you can use them to gain deeper insights into your data. Google's BigQuery, launched in 2010, is gaining traction as a popular choice with organizations needing to analyze large quantities of information quickly and to compare their own data against statistical data in the public domain.
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3 Oct 2023
Maria Durkin
How SQL for Business Can Boost Profit and Effectiveness
Are you ready to unleash the power of SQL and transform your business? In this article, we'll look at all of the ways SQL can improve your company's performance, from decision-making capabilities to operational efficiency. Having the correct tools to traverse the sea of information is critical in today's data-driven corporate climate. Structured Query Language, or SQL, is an essential tool for this task—and it’s one that has endured the test of time.
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1 Oct 2023
Jakub Romanowski
Free Course of the Month: Blog & Traffic Data
Why practice SQL with real-life scenarios? We'll explain in this article – and we’ll show how you can do it for free during October 2023 with this LearnSQL.com course! SQL is the backbone of many data-driven applications and businesses. It's a powerful language that allows you to interact with databases, retrieve data, and make insightful decisions. If you're looking to improve your SQL skills, our Basic SQL Practice: Blog & Traffic Data course is the perfect opportunity.
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28 Sep 2023
Ignacio L. Bisso
How to Use ROW_NUMBER OVER() in SQL to Rank Data
Sometimes you need to know the position of rows in a result set. Learn how using ROW_NUMBER and OVER in SQL can make it happen! Have you ever needed to add a sequential number to the records returned by an SQL query? Or perhaps you need to create a ‘top n’ report based on a specific ranking. In any of these cases, you need to calculate the position of the row in the ranking.
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28 Sep 2023
LearnSQL.com Team
New Monthly SQL Practice for October 2023!
In our October 2023 SQL Practice, you meet Sophie. She manages an online business for publishing and printing books and needs you to access and present various statistics to help her grow her business. Can you use your SQL skills to help? It should not be too hard if you have finished our SQL Basics courses or otherwise understand core SQL concepts. Our interactive SQL course is a great way to test your skills and see if you can put what you've learned so far into practice.
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