SQL course


SQL Is a standard computer language for accessing and processing databases .

In this tutorial , You will learn how to use SQL Access and process data in a data system , Such databases include :MySQL、SQL Server、Access、Oracle、Sybase、DB2 wait .

Examples of each chapter

 Each chapter provides a simple SQL Simple example .

example

SELECT * FROM Websites ;

The of this tutorial SQL stay MySQL The test passed .

This tutorial uses Websites surface SQL file :websites.sql.

This tutorial uses access_log surface SQL file :access_log.sql.

This tutorial uses apps surface SQL file :apps.sql.

Now start learning SQL!

SQL Quick reference manual

One SQL Quick reference manual , You can print it and put it in your pocket , View at any time .

SQL Quick reference manual

SQL Data type

introduce Microsoft Access、MySQL and SQL Server Data type and scope of .

SQL Data type