14 Best SQL courses of 2021

Managing and organizing data in business means you need to know SQL, but which course is best?

For most businesses, data is an essential ingredient to ensure continued growth, but it is not much good without manipulating it to gain crucial insights that can differentiate a business from its competition.

This is where SQL comes in. Pronounced “sequel,” programmers use Structured Query Language to extract and organize data stored in a relational database. This language helps recall specific data from databases used for more analysis. Even when the analysis is carried out on platforms, such as Python or R, SQL is needed to mine the necessary data from an organization’s database.

Many database platforms are in use today. These range from enterprise solutions, such as Microsoft SQL, Oracle, IBM DB2, and SAP HANA, to open source solutions like MySQL, PostgreSQL, and MariaDB. 

Learning SQL is easier than many people think and can benefit your career if you are willing to invest time and money. Having SQL as a skill can increase your job marketability and value to the organization where you work.

Whether you are a beginner keen to get into databases or a seasoned pro, here are some of the best SQL courses available. 

These online courses range from the complete beginner to expert level.

1. The Ultimate MySQL Bootcamp: Go from SQL Beginner to Expert

Duration: 20 hoursProvider: Udemy

This course helps students create a database or interact with existing databases and build a web app using NodeJS and MySQL. It looks at SQL syntax and how to analyze data using aggregate functions. 

Students don’t need database, SQL, MySQL or previous programming language experience. 

Upon completion, students should be able to interact with and query any SQL database and generate reports, answer company performance questions using data, and integrate MySQL into complete applications.

2. Databases and SQL for Data Science with Python

Duration: 18 hoursProvider: Coursera

This course aims to introduce relational database concepts and help you learn and apply foundational knowledge of the SQL language. 

A lot of the course is hands-on, practical learning, working with real databases, real data science tools, and real-world datasets. Students will create a database instance in the cloud and practice building and running SQL queries. There is also a chance to learn how to access databases from Jupyter notebooks using SQL and Python.

3. Managing Big Data with MySQL

Duration: 32 hoursProvider: Coursera

This course is about how 'Big Data' interacts with businesses and how to use data analytics to create value for businesses. 

There are four courses and a final Capstone Project where students apply their skills to a real-world business process. There is also teaching on using tools such as Microsoft Excel, Tableau, and MySQL to perform sophisticated data-analysis functions. 

4. SQL: Master SQL Database Queries in Just 90 Mins!

Duration: 90 minutesProvider: SkillShare

As the course suggests, this will teach students how to use SQL in 90 minutes for personal and business-related projects.

5. SQL & Database Design A-Z: Learn MS SQL Server + PostgreSQL

Duration: 12.5 hoursProvider: Udemy

In this course, students learn how to create queries in PostgreSQL and master database design concepts. 

Topics covered include online analytics processing (OLAP) versus online transaction processing (OLTP) databases and how and why the designs of these two types of databases differ. It also looks at database normalization and the step-by-step process to normalize a database.

6. The Complete Oracle SQL Bootcamp (2021)

Duration: 25 hoursProvider: Udemy

This course helps students quickly get up to speed with Oracle SQL. With over 160 lectures in the course, students will learn essential SQL concepts in Oracle databases. 

This course is continually updated with more lectures, quizzes, and assessments to enhance knowledge of Oracle SQL.

7. Advanced SQL for Query Tuning and Performance Optimization

Duration: 1 hour 44 minutesProvider: LinkedIn Learning

While SQL queries can be fast and highly efficient, they demand excessive CPU and memory resources. This course helps students better understand how databases translate SQL queries into execution plans and take steps to avoid these issues. 

It will show developers how to analyze query execution plans and use data modeling strategies to boost query performance. It also covers several methods for performing joins and discusses how to use partitioning and materialized views to improve performance.

8. Excel to MySQL: Analytic Techniques for Business Specialization

Duration: Seven weeks at 4 hours per weekProvider: Coursera

Students taking this course will learn to use tools and methods, such as Excel, Tableau, and MySQL, to analyze data, create forecasts and models, design visualizations, and communicate insights. 

The course ends with a final project that applies learned skills to explore and justify improvements to real-world business processes. 

9. Learn SQL

Duration: Two months at 10 hours per weekProvider: Udacity

This SQL “Nanodegree” helps students learn SQL commands, functions, and data cleaning methodologies to join, aggregate, and clean tables. It also helps them perform complete performance tune analysis to provide strategic business recommendations. 

At the end of the course, there’s a final project where students apply relational database management techniques to normalize data schemas to build the supporting data structures for a social news aggregator.

10. Databases: Advanced Topics in SQL

Duration: Two weeks at 8-10 hours per weekProvider: edX

This course is broad and practical, covering indexes, transactions, constraints, triggers, views, and authorization, all in the context of relational database systems and the SQL language. 

This course is best for learners looking to advance their understanding and use of relational databases.

11. MS SQL Server: Learn MS SQL Server from Scratch

Duration: Five hours 31 minutesProvider: Udemy

This course introduces SQL with MS Management Studio, allowing users to manage databases and retrieve data from the database with a graphical interface.

12. Learn Intermediate SQL for Marketers and Product Managers

Duration: 5 hoursProvider: Codecademy

Designed with marketers, product managers, consultants, and data analysts in mind, this course will teach students advanced techniques to work with data and frameworks specific to their careers. It investigates user churn metrics, interprets usage funnels, and analyzes first- and last-touch marketing attribution methodologies — all leading up to a Warby Parker capstone project.

13. Deploying Microsoft Azure Synapse Analytics and Azure SQL Database

Duration: 1 hour 57 minutesProvider: Pluralsight

By deploying Microsoft Azure Synapse Analytics and Azure SQL Database, students can gain foundational knowledge to create and deploy databases as part of a CI/CD process. 

Students In this course learn to create new Azure SQL Databases, Azure Data Warehouses, and Azure Data Factory resources and create ARM templates for each resource. 

After that, students then learn how to set up build and release pipelines with Azure DevOps to automatically provision new resources using ARM templates and deploying data warehouses or SQL databases using data-tier application packages (DACPAC).

14. SQL for Data Analysis: Beginner MySQL Business Intelligence

Duration: 4 hours 31 minutesProvider: Udemy

Using only a MySQL database and MySQL Workbench, students can learn to write SQL queries to explore and analyze databases. They can also analyze data across multiple tables with powerful MySQL JOIN statements. The course also includes practical, hands-on assignments and real-world business use cases.

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