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

Solution to Activity 4.1

In this activity, you will collect some information from the world schema to add bits of trivia to some of the articles in next month's edition of a travel magazine. Follow these steps to complete this activity:

  1. Connect to the world schema with the MySQL client:
    USE world;

This query produces the following output:

Figure 16.25 – Connecting to the world schema

  1. Write the following query to check the size of the smallest city in the database:
    SELECT Name, Population FROM city ORDER BY Population LIMIT 1;

This query produces the following output:

Figure 16.26 – The city with the smallest population

Here, you used the city table, sorted by Population, and finally, selected the name and population fields.

  1. Write the following query to check the number of languages spoken in India:
    SELECT Code FROM country WHERE name='India';
    SELECT * FROM countrylanguage...