3 SQL Online Courses on Hyperskill
Let’s face it: technologies are changing faster than ever before. Yes, we can’t travel to Mars on vacation (yet), but we can ask our mobile phone a question and get an answer in less than a second.
But let’s talk about databases. They are everywhere. If, for example, you’re searching for a new book on a bookstore’s site, and you type the name of your favorite author and then click the search button, you’re actually searching in the bookstore’s database for this book, just like you would search for a book on a shelf.
SQL stands for Structured Query Language. You can use this standard language to retrieve data, insert it into tables, update it, delete it, etc. SQL is one of the most popular languages. It is the glue that allows an application to interact with databases and the information they hold.
If you are reading this article, you’ve probably heard that SQL is one of the most in-demand skills. If you are interested in becoming an analyst or a product manager, or you just want to expand your knowledge as a marketing manager, you definitely should acquire this skill for your CV.
Learning SQL will help you stand out as a professional. In this article, we are listing the three best SQL online courses on Hyperskill. These courses will teach you how to work with SQL statements. Theoretical topics will save you time because you can use them as an abstract prepared by our experts. Meanwhile, you can try tackling some practical projects or tasks to help you understand the new material better.
SQL Fundamentals
The first one is the fundamental course for marketers, product managers, developers, and all those who want to get acquainted with SQL. Learn how to work with SQL and use this query language to collect and analyze data. This project-free course will introduce you to the basics of the SQL query language. You don’t need to know any programming language to complete this course. But it is helpful for anyone who wants to learn how to work with data and how databases work. You can also use this course as a guide and material for future reference.
You will:
- Get to know how to request, update, and delete data using basic SQL operators;
- Learn how to work with MySQL;
- Discover how to extract data and process them using SQL;
- Be able to make queries without using other programming languages;
- Find out how to use SQL functions in real-life tasks.
Moreover, you will get a certificate of completion at the end of this course. It will look great on your CV.
SQL with Python
This course is for all Python developers who want to learn how to work with SQL and databases — how to use SQL to retrieve, store, and process database data. If you are eager to learn more about the key tool for database optimization and maintenance, as well as about building a connection between an application and a data source, then this course is for you.
You will:
- Get to know the SQL syntax;
- Dive deeper into Python development;
- Learn how to work with SQL queries and database cursor methods;
- Get familiar with the basics of SQLAlchemy;
- Find out how to manage an SQLite database in Python;
- Practice loops, lists, and various string methods;
- Figure out how to get, store, and process data in your apps.
SQL for developers
This is a comprehensive course for backend developers who want to understand how to use databases to develop effective and reliable services. Choose this course to master the fundamentals of database theory, learn SQL statements to access data, and get practice with MySQL.
You will:
- Learn basic SQL syntax to retrieve, filter, and modify data from tables;
- Use SQL statements to create new tables and modify the existing ones;
- Gain an understanding of the Join operators to work with data from several tables at once;
- Learn how to use different SQL functions and subqueries to perform complex database operations;
- Get to know indexes and query plans to optimize work with data;
- Use procedures and triggers to create your own functions;
- Learn to work with transactions to maintain data consistency.
Choose your course and get new SQL skills with Hyperskill.
Hyperskill helps organizations and individuals learn programming and fill in the gaps in Computer Science and math. We are an online platform for project-based learning. Together with JetBrains, we are developing JetBrains Academy — an online educational resource for future developers integrated with JetBrains IDEs.
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