Articles Cookbook
26 Oct 2023
Jakub Romanowski

How to Prepare for the SQL Assessment Test

In this guide, I’ll walk you through the essentials of SQL assessment preparation, from understanding database management to mastering data analysis and SQL commands. Let’s dive in and set you on the path to success. In today's data-centric world, mastering SQL proficiency holds paramount importance. Whether you're a seasoned database manager or a newbie exploring the realm of database management, gearing up for an SQL Assessment is crucial. Stepping into the world of SQL can be both thrilling and challenging.
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25 Oct 2023
Jakub Romanowski

The Best SQL Books for 2024

In 2024, finding the right resources to learn SQL is more important than ever. But with so many options out there, how do you choose the best one? In this guide, I will share some top SQL books to help you learn and master SQL this year. SQL, or Structured Query Language, is a tool that helps you work with data stored in databases; it lets you find and change information quickly and easily.
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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 helps you set up your database and 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 deep understanding of SQL functionalities. Everyone has a different style of learning, but one thing we all need is SQL hands-on practice.
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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 INNER JOIN examples! In SQL, INNER JOINs can be 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. Each table represents a specific type of information.
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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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28 Sep 2023
Ignacio L. Bisso

How to Use ROW_NUMBER OVER() in SQL

Sometimes you need to know the position of rows in a result set. Learn how using ROW_NUMBER and OVER 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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