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

Activity 15.01 – backing up and restoring a single schema

In this activity, you will create a simulated disaster in the world schema and recover from this disaster. For this, you will be using mysqldump. Perform the following steps to complete this activity:

  1. Create the backup of the world schema.
  2. Simulate the disaster. Here, delete all the rows of the city table.
  3. Restore the backup.
  4. Verify that the data has been restored.

The expected output is as follows:

Figure 15.7 – The total rows in the city table after restoring

Note

The solution for this activity can be found in the Appendix.

Here, we successfully restored the world schema after wiping out the city table. As there were no other changes made to the world schema between the time of the backup and the time of DELETE, we have restored all the data.

In the next activity, we will perform a point-in-time restore.