Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Python GUI Programming Cookbook

You're reading from   Python GUI Programming Cookbook Develop functional and responsive user interfaces with tkinter and PyQt5

Arrow left icon
Product type Paperback
Published in Oct 2019
Publisher
ISBN-13 9781838827540
Length 486 pages
Edition 3rd Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Burkhard Meier Burkhard Meier
Author Profile Icon Burkhard Meier
Burkhard Meier
Arrow right icon
View More author details
Toc

Table of Contents (13) Chapters Close

Preface 1. Creating the GUI Form and Adding Widgets FREE CHAPTER 2. Layout Management 3. Look and Feel Customization 4. Data and Classes 5. Matplotlib Charts 6. Threads and Networking 7. Storing Data in Our MySQL Database via Our GUI 8. Internationalization and Testing 9. Extending Our GUI with the wxPython Library 10. Building GUIs with PyQt5 11. Best Practices 12. Other Books You May Enjoy

Using the SQL DELETE command

In this recipe, we will use the SQL DELETE command to delete the data we created in the previous recipe, Using the SQL UPDATE command.

While deleting data might sound trivial at first, once we get a rather large database design in production, things might not be that easy any more.

Because we have designed our GUI database by relating two tables via a primary to foreign key relation, when we delete certain data, we do not end up with orphan records because this database design takes care of cascading deletes.

Getting ready

This recipe uses the MySQL database, tables, and the data that was inserted into those tables from the previous recipe, Using the SQL UPDATE command. In order to demonstrate...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image