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Oписание

Этот репозиторий содержит мои решения SQL-задач с сайтов:

  1. SQL-EX — выполненных в среде PostgreSQL с использованием предоставляемой сайтом схемы базы данных. Реализованы в виде Jupyter Notebook с использованием среды Anaconda.

  2. LeetCode — выполненных в среде SQLite на основе SQL-схем, предоставленных сайтом. Реализованы в виде Jupyter Notebook с использованием среды Anaconda.

  3. DataLemur — выполненных в интегрированной среде MySQL и представленных ниже в виде сводной таблицы.


1. Решение задач с сайта SQL-EX

sql-ex.ipynb

2. Решение задач с сайта LeetCode

leetcode.ipynb


3. Решения задач с сайта DataLemur

Уровень сложности: Easy

Задача Решение
Histogram of Tweets Script

Уровень сложности: Medium

Задача Решение
User's Third Transaction Script

Уровень сложности: Hard

Задача Решение
Active User Retention Script

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