SQL

An introduction to the terminology used in the storage and access of data.

Hey, I'm Tomi Mester. This is my data blog, where I give you a sneak peek into online data analysts' best practices. You will find articles and videos about data analysis, AB-testing, research, data science and more�

This tutorial is designed for people who want to answer questions with data. For many, SQL is the "meat and potatoes" of data analysis'it's used for accessing, cleaning, and analyzing data that's stored in databases. In particular, this tutorial is meant for aspiring analysts who have used Excel a little bit but have no coding experience.

You'll get in-depth knowledge and skills that are built-up sequentially to make sure you don't have any gaps. It takes you from whatever level you're at to advanced skills, without delay - using real-life examples and applicable concepts to get you ready for any SQL job or project

If you're anything like me, SQL is one of those things that may look easy at first (it reads just like regular english!), but for some reason you can't help but google the correct syntax for every silly query. Then, you get to joins, aggregation, and subqueries and everything you read just seems like gibberish.

If you are looking for a complete PL/SQL tutorial, you are at the right place. This plsqltutorial.com website provides you with a comprehensive PL/SQL tutorial that helps you learn PL/SQL quickly and easily with a lot of fun.

If you're a developer or a database administrator looking for an easy way to master PL/SQL programming language, these PL/SQL tutorial series are for you.

Welcome to SQLBolt, a series of interactive lessons and exercises designed to help you quickly learn SQL right in your browser.

SQL for Web Nerds by Philip Greenspun

The world's most popular open source database