https://github.com/tynoee/covid19_data_analysis
This is an analysis of Covid 19 dataset using multiple SQL queries. The dataset used for this analysis includes various information regarding COVID-19 cases such as confirmed cases, deaths, and recoveries, segmented by different geographical locations and time periods.
https://github.com/tynoee/covid19_data_analysis
data-analysis excel sql sqlserver-2019 tableau tableau-public
Last synced: 4 months ago
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This is an analysis of Covid 19 dataset using multiple SQL queries. The dataset used for this analysis includes various information regarding COVID-19 cases such as confirmed cases, deaths, and recoveries, segmented by different geographical locations and time periods.
- Host: GitHub
- URL: https://github.com/tynoee/covid19_data_analysis
- Owner: Tynoee
- Created: 2024-03-25T16:13:21.000Z (almost 2 years ago)
- Default Branch: main
- Last Pushed: 2025-05-26T04:35:35.000Z (8 months ago)
- Last Synced: 2025-06-12T20:06:28.528Z (8 months ago)
- Topics: data-analysis, excel, sql, sqlserver-2019, tableau, tableau-public
- Homepage: https://public.tableau.com/app/profile/tinotenda.chidume/viz/Covid19Dashboard_17480847809640/Dashboard1?publish=yes
- Size: 34.5 MB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# 🦠 COVID-19 Data Analysis & Visualization
This project analyzes and visualizes global COVID-19 trends using **SQL** and **Tableau**. The dataset includes key metrics such as confirmed cases, deaths, vaccinations, and recoveries, segmented by country, continent, and time.
## 🧹 Data Cleaning & Preparation
- The original dataset was cleaned and pre-processed using **Microsoft Excel**.
- It was split into two main tables:
- `CovidDeaths`
- `CovidVaccinations`
- These tables were then imported into **SQL Server** for querying and analysis.
## 🛠 Tools & Technologies
- **Microsoft Excel** – Initial data cleaning and formatting
- **SQL Server** – Data querying and aggregation
- **Tableau Public** – Interactive data visualization
## 📊 Tableau Dashboard
The interactive dashboard visualizes global and regional COVID-19 trends, featuring:
- **Global Numbers**
- **Percent Population Infected Per Country**
- **Total Deaths Per Continent**
- **Percent Population Infected**
🔗 [View the COVID-19 Dashboard on Tableau Public](https://public.tableau.com/app/profile/tinotenda.chidume/viz/Covid19Dashboard_17480847809640/Dashboard1?publish=yes)
## 📌 Key Insights
- Some countries had disproportionately high infection rates relative to population size.
- Vaccination rollout pace varied widely by region.
- Death rates showed stark contrasts between continents.