SQL Tutorial

SQL is a standard computer language used to access and manipulate databases.

In this tutorial, you will learn how to use SQL to access and process data in data systems. Such databases include: MySQL, SQL Server, Access, Oracle, Sybase, DB2 and so on.

Examples in each chapter

Each chapter provides simple SQL examples.

Example

SELECT * FROM Websites;

The SQL of this tutorial was tested in MySQL.

The Websites table SQL file used in this tutorial: websites.sql.

The access_log table SQL file used in this tutorial: access_log.sql.

The access_log table SQL file used in this tutorial: apps.sql.

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SQL Quick Reference Manual

A SQL quick reference manual that you can print and put in your pocket for review at any time.

SQL Quick Reference Manual

SQL Data Types

Introduces the data types and ranges of Microsoft Access, MySQL, and SQL Server.

SQL data type

Introduction to SQL →

SQL Tutorial

Each chapter provides simple SQL examples.

SELECT * FROM Websites;

A SQL quick reference manual that you can print and put in your pocket for review at any time.

Introduces the data types and ranges of Microsoft Access, MySQL, and SQL Server.

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