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Webucator's Free SQL Tutorial

Welcome to our free SQL tutorial. This tutorial is based on Webucator's Introduction to SQL Training course.
Start Tutorial or choose from a lesson below
SQL stands for Structured Query Language and is pronounced either ess-que-el or sequel. It is the language used by relational database management systems (RDBMS) to access and manipulate data and to create, structure and destroy databases and database objects.
The SELECT statement is used to retrieve data from tables. SELECT statements can be used to perform simple tasks such as retrieving records from a single table or complicated tasks such as retrieving data from multiple tables with record grouping and sorting. In this lesson, we will look at several of the more basic ways to retrieve data from a single table.
In this lesson you will learn to write advanced select statements using SQL functions and grouping.
Often the data you need will be stored in multiple tables. In this lesson, you'll learn to create reports from two or more tables based on data in one of those tables or even in a separate table altogether.
In this lesson you will learn how to use CASE to add conditional logic to your queries.
Inserting new records into a table is not difficult. Dangerously, it is even easier to update and delete records.