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

The Bad Bits form

In the previous sections, we have not worked with bit fields except to set the default values. Bit fields are known as Yes/No fields in MS Access. When migrated to MySQL, they will become either a Bit or a TinyInt type, depending on how you migrated the table. Both types have some very peculiar properties when linked back to MS Access, which you need to know about. Let's have a further look here:

  • Bit
    • Will only accept -1 or 0 (True/False)
    • Will accept NULL but then will no longer work with Access
  • TinyInt
    • Will accept -128 to 127
    • Will accept NULL and continue to work with Access

A TinyInt type may be the best choice for an MS Access Yes/No field. It will take NULL, 0 is False, and any other value is True. Access will put -1 if selected in a CheckBox control. However, if you do have a bit field, you will get an interesting and baffling issue. If you are not aware of what to look for, this section is an informational exercise only; there will be no...