This repository contains a collection of SQL scripts demonstrating various analytical techniques, such as changes over time, cumulative, performance, data segmentation, part-to-whole analysis.

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

Проекты курса Инженер данных на платформе Yandex Practicum

💸 Bitcoin trading analysis

SQL projects using the different functions from basic to advance

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

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.

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.

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

HR analytics using advanced SQL | Window functions, CTEs, views, indexing | Optimized for dashboard consumption | MySQL

Advanced SQL analytics demonstrating window functions, CTEs, and cumulative calculations — techniques directly applicable to financial services reporting.

Pizza Sales analytics with sql

Creating Report for decision making in Film Rental Store

This repository showcases an SQL data analytics project demonstrating Exploratory Data Analysis (EDA) and Advanced Analytics (CTEs, Window Functions, Subqueries, Views) in PostgreSQL.

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

📊 End-to-end SQL data analysis project on Bank Transactions & Fraud Detection using PostgreSQL. 🛠️ SQL | PostgreSQL | Data Cleaning | Joins | Aggregations | CTEs | Window Functions | Fraud Detection | Business Insights.

Real estate market analysis in São Paulo using SQL and data from Zap Imóveis.