SQL is a powerful language for working with relational databases such as MySQL, PostgreSQL, SQL Server, and Oracle. This is an 80-minute introduction to writing SQL database queries. Please load a copy of DBeaver Community Edition (free, open-source) from https://dbeaver.io/download/ on your Mac, Windows, or Linux laptop to work along with the presentation. We will use the sample database that is included with DBeaver. We will start with simple SELECT statements to retrieve data, INSERT to add data, use UPDATE to modify it, and DELETE to remove it. We will then move on to using WHERE to narrow your database searches, grouping & ordering for readability, and using built-in functions. This is a great way to learn how to use a relational database.