1 Sep 2024 LearnSQL.com Team Free Course of the Month – SQL Practice Set in PostgreSQL Updated on: September 1, 2024 Do you know the basics of PostgreSQL but still need some practice? Look no further! Here is a great interactive course, SQL Practice Set in PostgreSQL. Throughout the month of September, you have access to it for FREE! We at LearnSQL.com believe that to learn a new skill, you need basic theoretical knowledge and, above all, a lot of practice. It's the same with writing PostgreSQL queries – you need a lot of PostgreSQL practice. Read more 30 Aug 2024 LearnSQL.com Team New Monthly SQL Practice for September 2024! Ready for our new SQL challenge? This time, the tasks are slightly more difficult. In this course, you will assist MoMA’s management by analyzing data using standard SQL functions to answer questions and solve problems. Welcome to the September SQL Practice course! In our September 2024 SQL Practice, you will work with the database at the Museum of Modern Art (MoMA) in New York City. MoMA’s management has hired you, an SQL specialist, to bring a fresh perspective to the museum. Read more 31 Jul 2024 LearnSQL.com Team New Monthly SQL Practice for August 2024! Ready for a new basic SQL challenge? This time, you will work with Alice, a yacht rental manager. She needs help with organizing and analyzing her rental data. Get ready to dive into the world of SQL queries as you help her enhance the yacht rental experience for all her customers. Welcome to the August SQL Practice course! In the August 2024 SQL Practice, you will meet Alice, the manager of a yacht rental business. Read more 28 Jun 2024 LearnSQL.com Team New Monthly SQL Practice for July 2024! Ready for our new SQL challenge? This time, the tasks are slightly more difficult. In this course, you will assist Chinook’s management in analyzing company performance using SQL JOINs. Welcome to the July SQL Practice course! In our July 2024 SQL Practice, you will work with the Chinook database. Chinook is a digital music store. Its management has hired you, an SQL specialist, to gain important insights into the business. Read more 27 Jun 2024 LearnSQL.com Team 54 Years of Relational Databases If it weren't for him, there would be no modern databases. It is the 54st anniversary of the publication of his article that changed the rules of the game. Edgar Frank Codd is one of the fathers of SQL, and his name is one of the first to be mentioned in the history of databases. Or maybe even the history of computer development in general? See what we owe to Dr. Read more 31 May 2024 LearnSQL.com Team New Monthly SQL Practice for June 2024! In our June 2024 SQL Practice, you will meet Christine, the manager of a gym downtown, who seeks help in gaining essential insights from the gym database. She wants to understand various aspects: the popularity of each trainer, the average price for a training session, members with active plans, and more. Can you use your SQL skills to lend her a hand? It should not be too challenging if you have completed our SQL Basics course or have a solid grasp of fundamental SQL concepts. Read more 29 Apr 2024 LearnSQL.com Team 10 Correlated Subquery Exercises with Solutions Correlated subqueries are a powerful SQL feature essential for advanced data analysis. This article provides 10 practical exercises to help you master correlated subqueries. SQL is a fundamental skill for anyone working with data, whether as a data analyst, a SQL developer, a data engineer, or any other related profession. Mastering SQL involves more than just understanding the basics. It also requires learning advanced SQL features, such as subqueries. Read more 27 Apr 2024 LearnSQL.com Team New Monthly SQL Practice for May 2024! Ready for our new SQL challenge? This time, the tasks are slightly more difficult. In this course, you will assist Jason in analyzing the employee hierarchy at his company using common table expressions and recursive queries. Welcome to the May SQL Practice course! In our May 2024 SQL Practice, you will meet Jason. He owns a company that makes riding lawn mowers. He needs HR insight into the employees at his company and has hired you as an SQL specialist to help him out. Read more 10 Apr 2024 LearnSQL.com Team Your Guide to SQL Practice at LearnSQL.com Explore a variety of SQL practice opportunities at LearnSQL.com and take your data analysis skills to the next level. Whether you're a beginner or an advanced user, our learning resources are designed to help you master SQL through hands-on learning and real-world usage scenarios. SQL, or Structured Query Language, is a powerful tool used extensively in data analysis. It allows you to access and manipulate databases quickly and efficiently. Whether you are working in finance, healthcare, tech, or almost any other industry, SQL helps you extract and analyze data. Read more 8 Apr 2024 LearnSQL.com Team Does Data Analytics Require Coding Thinking about a future in data analytics? You might be pondering the need for coding skills. Is it necessary to be good at programming? As the worlds of data analytics, technology, and data science merge, the importance of coding becomes clearer. It’s crucial to understand which programming languages are key and how much expertise you need, making the journey into this vibrant field less daunting. In this article, we're going to focus on the importance of coding, particularly SQL, for data analytics. Read more «« « 1 2 3 … 10 » »»