The dataset that have been used - https://ourworldindata.org/covid-deaths

These queries in this file used to create excel file that is used in Tableau visualizations - https://github.com/sardorboboshov/CovidAnalysis---Tableu/blob/master/SQLQuery1.sql

Here you can see visualization dashboard that have been created - https://public.tableau.com/app/profile/sardor.boboshov/viz/CovidAnalysisDashboard_17071538582190/Dashboard1?publish=yes