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This SQL project involves exploring Covid-19 data, showcasing a variety of skills and techniques used to perform data analysis in SQL. The project uses joins, CTEs, temp tables, window functions, aggregate functions, creating views, and converting data types to explore data in different ways.
The project begins by selecting and ordering data that will be used for subsequent analyses. The subsequent queries explore various aspects of the data, such as:
The project also breaks down data by continent, showing continents with the highest death count per population. Additionally, the project looks at global numbers, including the total number of cases and deaths, as well as the percentage of the population that has received at least one Covid-19 vaccine.
The project uses CTEs and temp tables to perform calculations on partitioned data and create new tables that can be used for subsequent analyses. Finally, the project creates a view to store data for later visualizations.