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

Calling MySQL functions

It is possible to call MySQL functions using passthrough queries. This can help to generate results without having to write additional code. To do this, you simply need to create a passthrough query and use it to call functions as you would in MySQL.

Exercise 10.02 – Passthrough (calling MySQL functions)

You would like to be able to count the values in the series table in order to use the values in analytics for reporting purposes. You currently have a function to do this, called fnCountSeries. To be able to count the values, you can call this function from Access. The following steps will demonstrate how this is done:

  1. We are working on SQL 5, the Series count. Locate the code in MS Access.
  2. Load the Create Function fnCountSeries.sql file into a query tab in Workbench and run it. This will create a function to count and return the records in the series table, as illustrated in the following screenshot. Verify the function that was created...