SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, …

Introduced in the 1970s, SQL offered two main advantages over older read–write APIs such as ISAM or VSAM. Firstly, it introduced the concept of accessing many records with one single command. …

This SQL Tutorial helps you master SQL quickly and effectively through many hands-on and practical examples with quizzes.

Nov 5, 2025 · Learn the foundational concepts of SQL, essential for anyone working with relational databases. This section covers the syntax, commands, and key elements to start querying and …

Nov 18, 2025 · Today at Ignite, we announce the general availability of SQL Server 2025. This marks the latest milestone in the more than 30-year history of SQL Server. It...

SQL, or Structured Query Language, is a language designed to allow both technical and non-technical users to query, manipulate, and transform data from a relational database. And due to its simplicity, …

1 day ago · This SQL Cheat Sheet covers 30+ commands with their practical usages and real-life examples. Learn everything about SQL from the very basics to advanced.

By practicing your SQL commands and seeing immediate results you will learn quickly. More than 200,000 students learnt SQL since 2017. Use the menu and follow the tutorial to learn SQL on your …

By picking up these SQL data summarization techniques, you'll be able to extract valuable insights from large datasets, identify trends, and make informed decisions.

Learn the essential SQL skills you need to succeed as a developer, analyst, or student. Our beginner-friendly tutorials will teach you SQL, SQLite, MySQL, and beyond. If you’re a developer, data analyst, …