SQL

Learn the Structured Query Language (SQL) that is commonly used in querying relational databases, how to create complex table-spanning queries, and how to optimize your queries for user=facing environments.

What is SQL ?

SQL, or Structured Query Language, is a language designed specifically for interacting with databases. It allows users to perform a wide variety of tasks, including retrieving data, inserting new data, updating existing data, and deleting data. SQL is a standard language that is used by many different database management systems, making it a versatile tool for anyone who needs to work with data. SQL can be used to insert, update, delete, and select data from a database.

How to Learn SQL

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SQL Resources

Introduction to SQL

Master the basics of querying tables in relational databases such as MySQL, SQL Server, and PostgreSQL.

Managing Big Data with MySQL

This course is an introduction to how to use relational databases in business analysis. You will learn how relational databases work, and how to use entity-relationship diagrams to display the structure of the data held within them. This knowledge wi...

Intro to SQL: Querying and managing data

Learn how to use SQL to store, query, and manipulate data. SQL is a special-purpose programming language designed for managing data in a relational database, and is used by a huge number of apps and organizations....

Introduction to SQL

Designed for beginners, learn the basics of SQL through practical tutorials and examples from award-winning instructor John Elder.