SQL tutorial
Planning for the Internet with PHP and MySQL

According to O'Reilly's famous Web 2.0 article, SQL language was to be popularized and become as common as HTML on websites, which seems to be coming true, few sites currently do not use the language in script or CMS. For example, WordPress-based blogs write articles to the MySQL database.
The webmaster must know the language, and this tutorial is designed to do that.

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