#8WeekSQLChallenge, https://8weeksqlchallenge.com: Solutions for SQL Case Studies

💸 Bitcoin trading analysis

Selected subset of Win (user32, shell32) API function calls for Window, Taskbar, etc handling, conveniently organized and wrapped in a C# DLL

Проекты курса Инженер данных на платформе Yandex Practicum

SQL projects using the different functions from basic to advance

This project is a SQL database management system that handles multiple tables and performs various queries and operations on them. It involves four different tasks, each with its own set of tables and questions to solve. The tasks cover a range of scenarios, that allow to apply basic, intermediate and advance SQL queries to different datasets.

120 years of Olympic history: athletes and results from basic biodata on athletes and medal results from Athens 1896 to Rio 2016.

SQL Case Studies solved using Microsoft SQL Server and PostreSQL

SQL Challenge

This repository contains the code and examples for my article on Medium, which provides an introduction to Window Functions in Apache Spark.

Metrocar is the final project of MS's Data Analyst course. By identifying user drop-offs, implementing dynamic pricing, and recognizing key user segments for targeted marketing, this project demonstrates my ability to enhance revenue and improve user experience.

This module enables you summarize and identify the quality of the data using concepts such as aggregation and window functions.

Quantify the impact of large scale supply changes on the sales perfomance of a business

I have started a new playlist called MySQL on my YouTube channel. Watch the videos to learn SQL from scratch.

SQL-запросы в Google Colab с помощью SQLite и PostgreSQL

Extending sqlite extension-functions to support median aggregate function as a window function. See https://www.sqlite.org/contrib. Forked from https://gitlab.com/liamh/extension-functions

Digital FIR and IIR filters with intelligible Python codes using SciPy.

A report uses customers transactions data to gain insights into customer behavior and optimize sales, revenue, customer retention, and churn

Unlock the power of SQL’s Common Table Expressions (CTEs) to transform data analysis capabilities! In this project, I demonstrate how to leverage CTEs to answer complex business questions with clarity and efficiency. Whether you’re dealing with hierarchical data, simplifying complex queries, or improving readability, CTEs are a game-changer.

Creating Report for decision making in Film Rental Store