Welcome to the third and final lesson for this tutorial. If you’ve gone through Lesson 1 and Lesson 2, you already know the essentials for installing and writing useful scripts with MySQL and PHP. We’re going to look at some useful PHP functions that should make your life a lot easier. First, let’s look at include files.
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WHAT IS A MySQL DATABASE ?
A MySQL database is just a useful way to store and order a lot of information. “Databases are most useful when it comes to storing information that fits into logical categories. For example, say that you wanted to store information of all the employees in a company. With a database you can group different parts of your business into separate tables to help store your information logically. Example tables might be: Employees, Supervisors, and Customers. Each table would then contain columns specific to these three areas.”
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This part will help you familiarize yourself with MySQL by providing a tutorial for you to try. As you work through it, you will create a sample database and some tables, and then interact with the database by adding, retrieving, deleting, and modifying information in the tables. During the process of working with the sample database, you will learn the following things:
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