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Create: 2025-05-28 Update: 2025-07-02 12:10:28

⚡️ SQL-шпаргалка, которая спасёт тебе интервью, проект и задницу

Большой мастер-гайд по SQL с подробными примерами, собранный в одном PDF.

Внутри:
💬 Создание баз, таблиц и изменение схем;
💬 Запросы любого уровня: JOIN, GROUP BY, HAVING, PARTITION;
💬 Подзапросы, CTE, оконные функции, ROW_NUMBER, RANK, DENSE_RANK;
💬 VIEW, временные таблицы и дублирование данных;
💬 Работа с датами, строками и преобразованиями;
💬 Удаление дубликатов, чистка данных, сплит по разделителю.
💬 UNION, INTERSECT, EXCEPT — мощный контроль над выборками.

Даже затронуты темы типа разбиения адресов на части, кастомной сортировки и использования ISNULL — всё, что нужно для практики и реальных задач.

🗳 Это не просто список команд — это концентрированный опыт.

Подойдёт для:
➡️Подготовки к SQL-интервью
➡️Анализа данных и BI
➡️Web-разработки с базами
➡️Внедрения SQL в проекты на Python или любом другом языке

📂 Сохраняй, пригодится!

#sql #cheatsheet

[PYTHON:TODAY]

⚡️

SQL-шпаргалка, которая спасёт тебе интервью, проект и задницу

Большой мастер-гайд по SQL с подробными примерами, собранный в одном PDF.

Внутри:
💬 Создание баз, таблиц и изменение схем;
💬 Запросы любого уровня: JOIN, GROUP BY, HAVING, PARTITION;
💬 Подзапросы, CTE, оконные функции, ROW_NUMBER, RANK, DENSE_RANK;
💬 VIEW, временные таблицы и дублирование данных;
💬 Работа с датами, строками и преобразованиями;
💬 Удаление дубликатов, чистка данных, сплит по разделителю.
💬 UNION, INTERSECT, EXCEPT — мощный контроль над выборками.

Даже затронуты темы типа разбиения адресов на части, кастомной сортировки и использования ISNULL — всё, что нужно для практики и реальных задач.

🗳 Это не просто список команд — это концентрированный опыт.

Подойдёт для:
➡️Подготовки к SQL-интервью
➡️Анализа данных и BI
➡️Web-разработки с базами
➡️Внедрения SQL в проекты на Python или любом другом языке

📂 Сохраняй, пригодится!

#sql #cheatsheet

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⚡️ SQL-шпаргалка

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