Book Image

The MySQL Workshop

By : Thomas Pettit, Scott Cosentino
5 (1)
Book Image

The MySQL Workshop

5 (1)
By: Thomas Pettit, Scott Cosentino

Overview of this book

Do you want to learn how to create and maintain databases effectively? Are you looking for simple answers to basic MySQL questions as well as straightforward examples that you can use at work? If so, this workshop is the right choice for you. Designed to build your confidence through hands-on practice, this book uses a simple approach that focuses on the practical, so you can get straight down to business without having to wade through pages and pages of dull, dry theory. As you work through bite-sized exercises and activities, you'll learn how to use different MySQL tools to create a database and manage the data within it. You'll see how to transfer data between a MySQL database and other sources, and use real-world datasets to gain valuable experience of manipulating and gaining insights from data. As you progress, you'll discover how to protect your database by managing user permissions and performing logical backups and restores. If you've already tried to teach yourself SQL, but haven't been able to make the leap from understanding simple queries to working on live projects with a real database management system, The MySQL Workshop will get you on the right track. By the end of this MySQL book, you'll have the knowledge, skills, and confidence to advance your career and tackle your own ambitious projects with MySQL.
Table of Contents (22 chapters)
1
Section 1: Creating Your Database
6
Section 2: Managing Your Database
11
Section 3: Querying Your Database
16
Section 4: Protecting Your Database

Creating and modifying tables

Once the database is created, you want to start adding tables to it. You can, at any time, add new tables to the database and even add new fields to the tables. However, once applications are using your database, you should be very careful about removing or renaming procedures, views, tables, and fields because applications or MySQL views and procedures using these objects will stop working.

You can create a new table using the following command:

CREATE TABLE [IF NOT EXISTS] tableName (FieldName1 Datatype, FieldName2 Datatype, …)

There are a number of properties we can set when we add a field to a table. Before we move on to an example, let's briefly discuss the properties available for our fields. The first common type of property is to set controls for whether a field can be null or not. If a field should never be null, you can add NOT NULL after the field data type. Otherwise, you can place NULL after the data type to allow for...