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SQL Basics

Introduction
1. Relational databases

Instruction

Welcome to our SQL Basics course. In this course, you will get to know how to talk to databases.

What is a database exactly? To put it simply, it's a computer program which stores various data. There are quite a few database vendors, e.g., Oracle, MySQL, PostgreSQL, SQL Server, and many others. Chances are some of these names already sound familiar to you – after all, databases can be found literally everywhere!

There are various types of databases. In this course, we're going to focus on relational databases – they're a very frequent choice in the contemporary IT world.

Let's find out about how relational databases are organized.

Exercise

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