Learn how to use SQL to manage your database records in these simple, straightforward tutorials, which include a quick start guide and detailed instructions for creating tables, defining relationships, manipulating strings, and more.
- [Voiceover] Hi, I'm Bill Weinman and welcome to SQL Essential Training. The goal of this course is to provide you with the basic knowledge that you need to use SQL effectively in any database environment. We'll start with the basics. How databases are organized, and in particular, how relational databases work. I'll explain how to use the Select statement, how to create, update and delete data from your tables, how to effectively format your code and how the basic structure of SQL works. I'll cover data types, aggregate queries, transactions and other features of this powerful database language.
Finally, I'll show you a full-working CRUD application. CRUD is an acronym for the four basic functions of any database application, Create, Read, Update and Delete. Understanding SQL will serve you well in coding and managing relational databases and your database applications. So let's get started with SQL Essential Training.
- Understanding SQL terminology and syntax
- Creating new tables and records
- Inserting and updating data
- Writing basic SQL queries
- Sorting and filtering
- Accessing related tables with JOIN
- Working with strings
- Finding the numeric type of a value
- Using aggregate functions and transactions
- Updating a table with triggers
- Creating views
Skill Level Beginner
Q: For Mac OS X: When I try to start the Apache Web Server from the XAMPP control panel, it doesn't start, and when I open "localhost" in my web browser, I see a white screen that says "It Works!" instead of the XAMPP page.
sudo apachectl stop
Q: I'm on a Mac, and I get an error in SID that says "attempt to write a read only database." How can I fix this?
A: This usually means that the database folder does not have sufficient permissions for writing by the web user. This can happen if you create the SQL folder new, rather than copying it from the Exercise Files. Here's how to fix this:
- Open a Finder window and Navigate to /Applications/XAMPP/htdocs/SQL
- Control-click on the SQL folder and select "Get Info" from the context menu.
- Under "Sharing and Permissions" (you may need to open the disclosure triangle), in the "everyone" row, select "Read & Write."Then you can close the Info window.
- Now repeat the process for the three *.db files inside the folder.
1. SQL Quick Start
Understanding joins2m 23s
Dates and times1m 59s
10. Subselects and Views
11. A Simple CRUD Application
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