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SQL from Zero to Hero - Data Engineer Career Track | Codefinity
Track
Certificate

SQL з Нуля до Героя

4.7+
2402 reviews
Beginner
Сьогодні ми навчимося керувати великими масивами даних та аналізувати реальні дані.
SQL
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What you will learn
  • You will learn how to write basic SQL queries to retrieve data from databases
  • You will understand how to filter, sort, aggregate and join data using SQL
  • You will learn how to modify and manage database structures with Data Definition Language (DDL)
  • You will develop skills to manage and manipulate data using Data Manipulation Language (DML)
  • You will gain a deep understanding of relational database concepts and the principles of normalization
  • You will learn how to optimize your queries using indexing and understand the importance of database performance
  • You will explore advanced SQL techniques such as triggers and window functions to enhance your data processing capabilities
  • You will understand and apply the principles of ACID in SQL transactions
  • You will learn how to create and manage database views and use them effectively in data retrieval
  • chapters
    101 chapters
  • hours
    10 hours
  • tasks
    112 tasks
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Learning track content
У цьому розділі ми навчимося фільтрувати виведенні дані за допомогою WHERE в виразі SELECT. Ми навчимося перевіряти дані на рівність, нерівність, перевищення і неперевищення діапазону значень, а також на наявність NULL-значень.
У цьому розділі ми дізнаємося, як комбінувати оператори WHERE з операторами AND та OR. Ми також дізнаємося, як працює оператор NOT.
У цьому розділі ми дізнаємося, що таке агрегатні функції SQL і як їх використовувати для підсумовування табличних даних.
Module 2 / Розширений Рівень SQL
У цьому розділі ви навчитеся групувати дані і працювати з ними. Для цього ми познайомимося з таким оператором, як GROUP BY. Ви також навчитеся фільтрувати згруповані дані за допомогою виразу HAVING.
Вивчіть основи мови опису даних (Data Definition Language, DDL) та мови маніпуляції даними (Data Manipulation Language, DML) в SQL, зокрема як створювати, модифікувати та видаляти об’єкти бази даних, а також як вставляти, оновлювати та видаляти дані в таблицях.
Module 3 / Реляційні Бази Даних та Нормалізація
У цьому розділі ви познайомитеся з реляційними та нереляційними базами даних і навчитеся створювати діаграми для представлення структур баз даних.
Цей розділ заглиблюється в тему реляційних баз даних і надає вичерпний огляд ключових теоретичних концепцій. Розглядаються такі теми, як зовнішні ключі, різні опції ON DELETE та різні типи звʼязків.
Настав час навчитися створювати бази даних, зосередившись на забезпеченні добре структурованої бази даних для оптимальної функціональності. У цьому розділі ви ознайомитеся з ключовими принципами побудови зручної у використанні бази даних.
Module 4 / Advanced Techniques in SQL
Now we explore the basic principles of ACID (Atomicity, Consistency, Isolation, Durability) in database management. Learn how these principles ensure reliable transactions by guaranteeing complete operations, keeping data consistent, isolating concurrent transactions, and ensuring permanent data storage.
Explore how to enhance the efficiency of your SQL queries through index optimization. Delve into the significance of indexes in database performance, learning how to design, implement, and utilize them effectively. Discover strategies for choosing the appropriate indexes, understanding their impact on query execution plans, and optimizing query performance through index selection and utilization.
This section explores pivotal topics such as Triggers, Window Functions, and DCL (Data Control Language), offering comprehensive insights into their implementation and optimization strategies. Furthermore, it navigates the landscape of NoSQL DBMS, providing a thorough understanding of its architecture, advantages, and practical applications.
Requirements
  1. A computer with a browser - all browsers are supported.
  2. Your enthusiasm to enhance your tech skills.
  3. Everything else needed to start learning and practicing is already included in this course.
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Well designed for total beginners, incremental progress and makes me feel confident....
_Gracy
it's simply perfectly well explained
it's simply perfectly well explained! so far I have not experienced any difficulty because everything is so well managed...
Ruslan Kravchuk
The main thing is to learn and not give up
The material is good, there is a lot to learn, all in order to become better and the main thing is to learn what you want....
Matteo Comune
Thanks to them I'm learning a lot…
Thanks to them I'm learning a lot faster because they help you to understand everything from scratch. It's the best website that helps people with no background in IT...
Yuliana Cadavid
great course for beginners
great course for beginners, they test your knowledge in every lesson...
Elpunzon
I am enjoying my Codefinity experience…
I am enjoying my Codefinity experience learning Python. The self-paced way of learning is great because I can fit it into my schedule...
Alexandru Alexandru
Is nice to learn from codefinity
Is nice to learn from codefinity. Its easy and have good examples on what I learned here...
jacob Templet
Easy to follow along with and provides…
Easy to follow along with and provides challenge in my every day life. The challenge keeps me wanting to learn day after day...
Elan
Codefinity is a comprehensive learning…
Codefinity is a comprehensive learning tool to help you develop your skills as a software engineer or data scientist. The exercises are fun and a good way to sharpen your skills...
Thibault
First time learning how to code
First time learning how to code and successfully doing so with codefinity - thank you...
Adrien Morel
Well designed for total beginners
Well designed for total beginners, incremental progress and makes me feel confident....
_Gracy
it's simply perfectly well explained
it's simply perfectly well explained! so far I have not experienced any difficulty because everything is so well managed...
Certificate of Completion
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