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PortfolioProjectSQL1.sql
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PortfolioProjectSQL1.sql
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Select *
From PortfolioProject..CovidDeaths
Where continent is not null
order by 3,4
--Select Data that we are going to be using
Select Location, date, total_cases, new_cases, total_deaths, population
From PortfolioProject..CovidDeaths
Where continent is not null
order by 1,2
-- Looking at total cases vs total deaths
-- Shows the likelihood of dying if you contract covid in your country
Select Location, date, total_cases, total_deaths, (total_deaths/total_cases)*100 as DeathPercentage
From PortfolioProject..CovidDeaths
Where location = 'vietnam'
and continent is not null
order by 1,2
--Looking at Total cases vs population
--Shows what percentage of population got covid
Select Location, date, population, total_cases, (total_cases/population)*100 as PercentPopulationInfected
From PortfolioProject..CovidDeaths
Where location = 'vietnam'
order by 1,2
--Looking at countries with highest infection rate compared to population
Select Location, population, max(total_cases) as HighestInfectionCount, max((total_cases/population))*100 as PercentPopulationInfected
From PortfolioProject..CovidDeaths
Group by Location, population
order by PercentPopulationInfected desc
--Showing countries with the highest death count per population
Select Location, MAX(cast(Total_Deaths as int)) as TotalDeathCount
From PortfolioProject..CovidDeaths
Where continent is not null
Group by Location
order by TotalDeathCount desc
--Showing continents with the highest death count per population
Select continent, MAX(cast(Total_Deaths as int)) as TotalDeathCount
From PortfolioProject..CovidDeaths
Where continent is not null
Group by continent
order by TotalDeathCount desc
--Global numbers
Select SUM(new_cases) as total_cases, SUM(cast(new_deaths as int)) as total_deaths, SUM(cast(new_deaths as int))/SUM(new_cases)*100 as DeathPercentage--total_cases, total_deaths, (total_deaths/total_cases)*100 as DeathPercentage
From PortfolioProject..CovidDeaths
Where continent is not null
order by 1,2
--Looking at total population vs vaccinations
Select dea.continent, dea.location, dea.date, dea.population, vac.new_vaccinations, SUM(Convert(bigint, vac.new_vaccinations)) OVER (Partition By dea.location Order by dea.location, dea.date) as RollingPeopleVaccinated --(RollingPeopleVaccinated/population)*100
From PortfolioProject..CovidDeaths dea
Join PortfolioProject..CovidVaccinations vac
On dea.location = vac.location
and dea.date = vac.date
Where dea.continent is not null
order by 2,3
--Use CTE
With PopvsVac (Continent, Location, Date, Population, New_Vacinations, RollingPeopleVaccinated)
as
(
Select dea.continent, dea.location, dea.date, dea.population, vac.new_vaccinations, SUM(Convert(bigint, vac.new_vaccinations)) OVER (Partition By dea.location Order by dea.location, dea.date) as RollingPeopleVaccinated --(RollingPeopleVaccinated/population)*100
From PortfolioProject..CovidDeaths dea
Join PortfolioProject..CovidVaccinations vac
On dea.location = vac.location
and dea.date = vac.date
Where dea.continent is not null
)
Select * , (RollingPeopleVaccinated/Population) *100
From PopvsVac
--Temp Table
DROP Table if exists #PercentPopulationVaccinated
Create Table #PercentPopulationVaccinated
(
Continent nvarchar(255),
Location nvarchar(255),
Date datetime,
Population numeric,
New_vaccinations numeric,
RollingPeopleVaccinated numeric
)
Insert Into #PercentPopulationVaccinated
Select dea.continent, dea.location, dea.date, dea.population, vac.new_vaccinations, SUM(Convert(bigint, vac.new_vaccinations)) OVER (Partition By dea.location Order by dea.location, dea.date) as RollingPeopleVaccinated --(RollingPeopleVaccinated/population)*100
From PortfolioProject..CovidDeaths dea
Join PortfolioProject..CovidVaccinations vac
On dea.location = vac.location
and dea.date = vac.date
Where dea.continent is not null
Select * , (RollingPeopleVaccinated/Population) *100
From #PercentPopulationVaccinated
--Creating view to store data for later visualization
Create View PercentPopulationVaccinated as
Select dea.continent, dea.location, dea.date, dea.population, vac.new_vaccinations, SUM(Convert(bigint, vac.new_vaccinations)) OVER (Partition By dea.location Order by dea.location, dea.date) as RollingPeopleVaccinated --(RollingPeopleVaccinated/population)*100
From PortfolioProject..CovidDeaths dea
Join PortfolioProject..CovidVaccinations vac
On dea.location = vac.location
and dea.date = vac.date
Where dea.continent is not null
Select *
From PercentPopulationVaccinated