Welcome to our course "Operating on Data in SQL," where you will learn how to manage data in your database!
Data in any database are constantly changing. You will learn how to add new information to a database, how to modify information and how to remove information from a database.
We assume that you already know how to create SQL queries and how to deal with them. If you don't, feel free take a look at our SQL Queries course first.
We'll provide you with easy-to-understand examples based on a simple table called
user (id, name, age)
Each user has a unique
id, a specific
age. Easy, right?
To make things more exciting, however, you'll be working with another table, table
dish. C'mon, take a look at it.