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COVID data exploration
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247 lines (170 loc) · 4.5 KB
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--CovidDeaths table
SELECT
location,
date,
total_cases,
new_cases,
total_deaths,
population
FROM PortfolioProject..CovidDeaths
ORDER BY 1, 2
-- Looking at Total Cases vs Total Deaths
-- Shows the precentage of dying from COVID19
SELECT
location,
date,
total_cases,
total_deaths,
(total_deaths / total_cases) * 100 AS DeathPercentage
FROM PortfolioProject..CovidDeaths
WHERE location LIKE 'United Kingdom'
ORDER BY 1, 2
-- Looking at Total Cases vs Population
--Shows what percentage of population got COVID19
SELECT
location,
date,
population,
total_cases,
(total_cases / population) * 100 AS InfectedPercentage
FROM PortfolioProject..CovidDeaths
WHERE
location LIKE 'United Kingdom'
AND continent IS NOT NULL
ORDER BY 1, 2
--Looking at countries with highest Infection Rate vs Population
SELECT
location,
population,
MAX(total_cases) AS HighestInfectionCount,
MAX((total_cases / population) * 100) AS InfectedPercentage
FROM PortfolioProject..CovidDeaths
GROUP BY
location,
population
ORDER BY InfectedPercentage DESC
-- Showing countries with the highest death count per Population
SELECT
location,
MAX(CAST(Total_deaths as int)) AS TotalDeathsCount
FROM PortfolioProject..CovidDeaths
WHERE continent IS NOT NULL
GROUP BY
location
ORDER BY TotalDeathsCount DESC
--Breaking down numbers by Continent
SELECT
location,
MAX(CAST(Total_deaths as int)) AS TotalDeathsCount
FROM PortfolioProject..CovidDeaths
WHERE continent IS NULL
GROUP BY
location
ORDER BY TotalDeathsCount DESC
--Showing continents with highest death count per population
SELECT
continent,
MAX(CAST(Total_deaths as int)) AS TotalDeathsCount
FROM PortfolioProject..CovidDeaths
WHERE continent IS NOT NULL
GROUP BY
continent
ORDER BY TotalDeathsCount DESC
--GLOBAL NUMBERS per day
SELECT
date,
SUM(total_cases) AS Total_Cases,
SUM(CAST(new_deaths AS int)) AS Total_Deaths,
SUM(CAST(new_deaths AS int)) / SUM(New_cases) * 100 DeathPercentage
FROM PortfolioProject..CovidDeaths
WHERE continent IS NOT NULL
GROUP BY date
ORDER BY 1, 2
--CovidVaccinations table
--Looking at Total Population vs Vaccinations
SELECT
dea.continent,
dea.location,
dea.date,
dea.population,
vac.new_vaccinations,
SUM(CAST(vac.new_vaccinations AS int)) OVER (PARTITION BY dea.location ORDER BY dea.location, dea.date) AS PopVaccinated
(PopVaccinated/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_vaccinations, PopVaccinated)
AS
(
SELECT
dea.continent,
dea.location,
dea.date,
dea.population,
vac.new_vaccinations,
SUM(CAST(vac.new_vaccinations AS int)) OVER (PARTITION BY dea.location ORDER BY dea.location, dea.date) AS PopVaccinated
--(PopVaccinated/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
)
SELECT
*,
(PopVaccinated/population) *100 AS PercentPopVacinated
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,
PopVaccinated numeric
)
GO
INSERT INTO #PercentPopulationVaccinated
SELECT
dea.continent,
dea.location,
dea.date,
dea.population,
vac.new_vaccinations,
SUM(CAST(vac.new_vaccinations AS int)) OVER (PARTITION BY dea.location ORDER BY dea.location, dea.date) AS PopVaccinated
--(PopVaccinated/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
GO
SELECT
*,
(PopVaccinated/population) *100 AS PercentPopVacinated
FROM #PercentPopulationVaccinated
GO
--Creating View to store data for later visualizations
CREATE VIEW [PercentPopVaccinated] AS
SELECT
dea.continent,
dea.location,
dea.date,
dea.population,
vac.new_vaccinations,
SUM(CAST(vac.new_vaccinations AS int)) OVER (PARTITION BY dea.location ORDER BY dea.location, dea.date) AS PopVaccinated
--(PopVaccinated/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
GO
SELECT * FROM PercentPopVaccinated