17 Oct 2024 Window Functions SQL window functions are powerful tools that allow you to perform calculations across sets of rows related to the current query row, making them essential for advanced data analysis. With window functions, you can efficiently perform tasks like ranking, running totals, and moving averages. Below is a collection of articles, all curated by the SQL experts at LearnSQL.com, designed to help you understand and master SQL window functions. You'll find detailed guides, tips, and practical exercises that cater to both beginners and advanced users, making it easier to incorporate window functions into your SQL queries for more dynamic data analysis. Read more 29 Apr 2024 Subqueries SQL subqueries are a powerful feature that allows you to write queries within queries, providing a flexible way to retrieve data. They are essential for solving more complex data problems by allowing you to break down your tasks into smaller, manageable parts. Below is a collection of articles that will help you understand and master SQL subqueries. These resources include in-depth guides, tips, and practical exercises designed for both beginners and advanced users, making it easier to incorporate subqueries into your SQL toolkit for more efficient and effective querying. 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These resources include a variety of guides, tips, and hands-on exercises covering everything from fundamental queries to advanced topics. They offer the perfect opportunity to strengthen your SQL knowledge through practical application. Read more 26 Sep 2024 SQL Cheat Sheets An SQL cheat sheet is a quick reference guide that lists the most common SQL commands and syntax in an easy-to-use format. It serves as a handy shortcut for quickly looking up how to write queries or perform actions in SQL. Below, you'll find SQL cheat sheets, expertly crafted by top professionals from the LearnSQL.com team. These resources cover everything from basic queries to advanced topics, making it easier for both beginners and experienced users to work with SQL efficiently. Read more 26 Jun 2025 SQL Basics Learning the basics of SQL is the first step to working with databases. It teaches you how to retrieve, update, and analyze data—skills that are essential for anyone new to SQL. Below is a list of articles that will guide you through the essential SQL concepts. These articles are simple to follow and include practical exercises to give you hands-on experience. Whether you're writing your first query or reviewing core concepts, these resources will help you solidify your understanding of SQL basics. Read more 22 Apr 2025 SQL SQL (Structured Query Language) is a tool used to work with data stored in databases. It helps you create, read, update, and delete data, which is important for tasks like analyzing data, creating reports, and developing applications. SQL is used in many industries and is a key skill for anyone dealing with data. Below is a list of articles from the experts at LearnSQL.com that explain both the basics and more advanced parts of SQL. Read more 3 Jul 2025 Resources Read more 13 Jun 2024 Recursive Queries Read more 1 Jul 2025 PostgreSQL Read more 17 Oct 2024 Order By Read more 1 May 2023 Oracle Read more 13 May 2025 Online Practice Online SQL practice is an excellent way to sharpen your SQL skills through hands-on experience. By working with real-world scenarios and interactive exercises, you can apply what you've learned and deepen your understanding of SQL. Below is a list of articles, all curated and developed by the SQL experts at LearnSQL.com. These resources include guides, tips, and practical exercises that cover everything from foundational queries to advanced topics. Whether you're a beginner or an experienced user, these articles are designed to help you refine your SQL skills through hands-on practice and expert insights. Read more 3 Sep 2024 Online Course Read more 16 Apr 2024 Numerical Functions Read more 28 Jan 2025 Null Read more 4 Jul 2024 New Course Read more 3 Feb 2025 MySQL Read more 1 Jul 2025 Monthly Sql Practice Read more 1 May 2025 MS SQL Server Read more 25 Mar 2025 Learn With Learnsql.com Read more 17 Jun 2025 Learn Sql Read more 24 Jun 2025 Jobs and Career The SQL job market is booming, and SQL skills are highly sought after in various industries, from data analysis and engineering to business intelligence and development. Knowing SQL can open doors to many exciting career opportunities and give you a competitive edge in the job market. Below is a collection of articles that explore the role of SQL in different careers. These resources include tips on how to build your SQL skills, prepare for interviews, and find jobs that require SQL expertise. Read more 14 Nov 2024 JOIN Read more 14 Mar 2024 Installation Guide Read more 28 Apr 2022 Insert Update Delete Read more 11 Feb 2025 Group By Read more 20 May 2025 Google Bigquery Read more 30 Jul 2024 For Business Read more 27 Jun 2024 Date and Time Functions Read more 22 Feb 2022 Data Types Read more 15 May 2025 Data Engineering Data engineering focuses on building systems that collect, store, and process large amounts of data. It's an essential part of making data accessible for analysis and decision-making. SQL is a key tool for data engineers, helping them manage databases and create efficient pipelines for data movement and transformation. Below is a collection of articles that dive into the role of SQL in data engineering. These articles cover essential concepts, practical tips, and exercises to help you understand how to use SQL in data engineering tasks, whether you're designing a database, managing data pipelines, or optimizing performance. Read more 29 May 2025 Data Analysis Read more 1 Jul 2025 Course of the Month The "Course of the Month" offers a specially selected SQL course that is free for a limited time, allowing you to focus on building a specific skill or mastering an essential SQL concept. Each month, LearnSQL.com highlights an expertly developed course that guides learners through practical, real-world scenarios, available at no cost during that period. Below is a collection of articles showcasing the "Course of the Month" selections. Don't miss the chance to access these free SQL courses and elevate your SQL expertise. Read more 1 Oct 2024 Common Table Expressions Common Table Expressions (CTEs) are a useful feature in SQL that help simplify complex queries by breaking them down into smaller, more manageable parts. They allow you to write queries that are easier to read and maintain, making your SQL code cleaner and more efficient. Below is a collection of articles from SQL experts at LearnSQL.com that explain how to use CTEs effectively. These resources include detailed guides, practical examples, and exercises to help you master CTEs, whether you're writing basic queries or tackling more advanced tasks. Read more 16 Jan 2024 Case When Read more 6 Oct 2020 Behind the Scenes Read more 15 Oct 2024 Aggregate Functions Read more 7 Jan 2025 Advanced Sql Read more 1 Jul 2025 About Our Courses Read more