SQL Introduction

SQL is a Structured Query Language designed specifically for managing and manipulating data stored in relational databases. In this course, you will learn the key features of SQL and how to work with SQL Databases.
Начальный уровень
Сертификат Stepik

Чему вы научитесь

  • Extract information from SQL databases using SQL queries.
  • Process and modify raw information for convenient output.
  • Modify and add new data to tables.
  • Use WHERE and HAVING to filter data.
  • Group data using GROUP BY.
  • Retrieve data from related tables using JOIN.
  • Use built-in functions and expressions in SQL queries.

О курсе

🏅 Winner of the Stepik Award 2023 in the category "Breakthrough of the Year"
🏅 The course "SQL Introduction" is listed among the best courses of 2023!

SQL is a declarative programming language used for creating, modifying, and managing data in a relational database managed by a corresponding database management system.

Databases are used in virtually all aspects of modern technology, including web development, data analytics, business analysis, finance, healthcare, and much more.

Therefore, it is important for a beginner IT specialist to understand and be able to use SQL because:

  1. SQL forms the foundation for working with databases. 
    SQL is used for creating, modifying, and managing data in databases. It is the primary language used for working with relational databases, and it is important to grasp its fundamentals in order to work with databases effectively.
  2. SQL is an essential skill for the IT industry.
    Many job vacancies in the IT industry require knowledge of SQL, as data is an integral part of any IT specialist's work. Proficiency in SQL can open up more opportunities for a beginner specialist to work and enhance their qualifications.
  3. SQL enables the processing of large volumes of data.
    In the world of modern technology, the amount of data that needs to be processed is constantly growing. SQL allows for quick and efficient processing of large volumes of data, making it a fundamental language for working with data in any IT company.

This course is perfect for beginners who want to learn SQL.

Для кого этот курс

The course will be useful for: IT-specialists, testers, marketers, data analysts, administrators and all those who work with SQL databases.

Начальные требования

This course consists of theoretical, testing, and practical sections on SQL.
It is designed to provide you with a comprehensive understanding of SQL and its core concepts.

However, to successfully complete this course, it's important to have elementary knowledge of computer science and mathematics. If you encounter difficulties with certain concepts or ideas related to computer science or mathematics, you should spend some time studying them to address fundamental issues.

Наши преподаватели

Программа курса



Сертификат Stepik

Что вы получаете

  • Skills and knowledge in demand by employers.
  • Opportunity to apply theory in practice.
  • Understanding of the fundamental concepts and syntax of the SQL language.
  • Preparation for interviews.
Price: Бесплатно

Расскажите о курсе друзьям

Price: Бесплатно