sql.tar.gz

The ability to work SQL is becoming an increasingly in-demand skill, both for software developers and people in less technical roles. If you’re interested in learning SQL and have no prior experience with it, then this course will be your light in a dark tunnel.

You’ll start by covering the basics of SQL such as how to create a database, how to insert, query, and update data. You’ll also learn fundamental concepts that developers and data scientists use everyday such as multi-table operations, nested queries, and how to set up views. 

Throughout, you’ll get to execute SQL queries in your browser and see results in real-time - you won’t need to worry about set-up.

At the end of this course, you’ll also get some hands-on practice with common SQL interview questions, so when the time comes, you’ll be ready and confident to answer any question that comes your way. Let’s get started!

An Introductory Guide to SQL

## Types of Joins
In the previous section we worked with a single table to learn the basics of SQL. However, relational databases define relationships between tables and often queries require gleaning information from two or more tables. Joins allow us to combine rows from multiple tables using columns common between them. In fact, the relations defined amongst tables is what makes relational databases, relational.

To drive the concepts home, we'll work with two tables that have one column common between them. The two tables are shown below:


# Types of Joins
In the previous section we worked with a single table to learn the basics of SQL. However, relational databases define relationships between tables and often queries require gleaning information from two or more tables. Joins allow us to combine rows from multiple tables using columns common between them. In fact, the relations defined amongst tables is what makes relational databases, relational.

To drive the concepts home, we'll work with two tables that have one column common between them. The two tables are shown below:


This lesson discusses the different types of joins as specified by ANSI SQL. 

Introduction

Basic SQL

Joins

Nested Queries

Multi Table Operations

Views

Stored Procedures

Triggers

Miscellaneous

Practice & Prep

Epilogue

Types of Joins

Types of Joins