https://github.com/mrjaid23/quantum-analytics-sql-capstone-project
SQL Capstone Project
https://github.com/mrjaid23/quantum-analytics-sql-capstone-project
mssql sql
Last synced: 4 months ago
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SQL Capstone Project
- Host: GitHub
- URL: https://github.com/mrjaid23/quantum-analytics-sql-capstone-project
- Owner: mrjaid23
- Created: 2024-08-04T13:28:48.000Z (almost 2 years ago)
- Default Branch: main
- Last Pushed: 2024-08-04T14:14:04.000Z (almost 2 years ago)
- Last Synced: 2025-01-18T12:16:03.154Z (over 1 year ago)
- Topics: mssql, sql
- Homepage:
- Size: 34.2 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Quantum-Analytics-SQL-Capstone-Project
## This is a SQL database Exploration Project for my Data Analytics Certification
- It contains a set of business problems that requires the retrieval of datasets from the database.
[Project Brief](https://github.com/mrjaid23/Quantum-Analytics-SQL-Capstone-Project/blob/f65fbaa9dc5e08c1dfdcdec6803921619259e70e/QA%20SQL%20Capstone%20Project.docx)
> Solutions
**Question 1**
```
SELECT ProductID, Name, Color, ListPrice, StandardCost AS Price
FROM Production.Product
WHERE COLOR IS NOT NULL AND COLOR NOT IN ('RED', 'SILVER/BLACK', 'WHITE') AND ListPrice BETWEEN 75 AND 750
ORDER BY ListPrice DESC;
```
**Question 2**
```
SELECT BusinessEntityID, JobTitle, BirthDate, Gender, HireDate
FROM HumanResources.Employee
WHERE (Gender = 'M' AND BirthDate BETWEEN '1962-01-01' AND '1970-12-31' AND HireDate > '2001-12-31')
OR (Gender = 'F' AND BirthDate BETWEEN '1972-01-01' AND '1975-12-31' AND HireDate BETWEEN '2001-01-01' AND '2002-12-31');
```
**Question 3**
```
SELECT TOP 10 ProductID, Name, Color
FROM Production.Product
WHERE ProductNumber LIKE 'BK%';
```
**Question 4**
```
SELECT BusinessEntityID, FirstName, LastName, EMailAddress, CONCAT(FirstName, ' ', LastName) AS FullName, LEN(CONCAT(FirstName, ' ', LastName)) AS FullNameLength
FROM Person.vAdditionalContactInfo;
```
**Question 5**
```
SELECT PS.ProductSubcategoryID, PS.Name AS ProductSubcategoryName, PP.DaystoManufacture
FROM Production.Product AS PP
INNER JOIN Production.ProductSubcategory AS PS
ON PP.ProductSubcategoryID = PS.ProductSubcategoryID
WHERE PP.DaystoManufacture >= 3;
```
**Question 7**
```
SELECT COUNT(DISTINCT JobTitle) AS DistinctJobTitle
FROM HumanResources.Employee;
```
**Question 8**
```
SELECT BusinessEntityID, BirthDate, HireDate, DATEDIFF(YEAR, BirthDate, HireDate) AS AgeAtHiring
FROM HumanResources.Employee;
```
**Question 9**
```
SELECT COUNT(*) AS NoOfEmployeesDueForAward
FROM HumanResources.Employee
WHERE HireDate <= DATEADD(YEAR, 20, GETDATE()) AND HireDate > DATEADD(YEAR, 25, GETDATE());
```
**Question 10**
```
SELECT BusinessEntityID, BirthDate, HireDate, DATEDIFF(YEAR, BirthDate, HireDate) AS AgeAtHiring, DATEDIFF(YEAR, HireDate, GETDATE()) AS NoOfYearsinService, DATEDIFF(YEAR, BirthDate, HireDate) + DATEDIFF(YEAR, HireDate, GETDATE()) AS CurrentAge,
CASE WHEN DATEDIFF(YEAR, BirthDate, GETDATE()) < 65 THEN 65 - DATEDIFF(YEAR, BirthDate, GETDATE())
ELSE 0
END AS YearsUntilSentiment
FROM HumanResources.Employee;
```
**Question 11**
```
-- Create a temporary table to store the new prices and commission
SELECT
ProductID,
Name,
Color,
ListPrice,
CASE
WHEN Color = 'White' THEN ListPrice * 1.08
WHEN Color = 'Yellow' THEN ListPrice * 0.925
WHEN Color = 'Black' THEN ListPrice * 1.172
WHEN Color IN ('Multi', 'Silver', 'Silver/Black', 'Blue') THEN SQRT(ListPrice) * 2
ELSE ListPrice
END AS NewPrice,
CASE
WHEN Color = 'White' THEN ListPrice * 1.08 * 0.375
WHEN Color = 'Yellow' THEN ListPrice * 0.925 * 0.375
WHEN Color = 'Black' THEN ListPrice * 1.172 * 0.375
WHEN Color IN ('Multi', 'Silver', 'Silver/Black', 'Blue') THEN SQRT(ListPrice) * 2 * 0.375
ELSE ListPrice * 0.375
END AS Commission
INTO #TempNewPrices
FROM
Production.Product;
```
-- Select the results from the temporary table
```
SELECT
ProductID,
Name,
Color,
ListPrice,
NewPrice,
Commission
FROM
#TempNewPrices;
```
**Question 12**
```
SELECT SS.BusinessEntityID, SS.SalesQuota, PP.BusinessEntityID, PP.FirstName, PP.LastName, HE.BusinessEntityID, HE.HireDate, HE.SickLeaveHours, ST.Name AS Region
FROM Sales.SalesPerson AS SS
INNER JOIN Person.Person AS PP
ON SS.BusinessEntityID = PP.BusinessEntityID
INNER JOIN HumanResources.Employee AS HE
ON SS.BusinessEntityID = HE.BusinessEntityID
INNER JOIN Sales.SalesTerritory AS ST
ON ST.TerritoryID = SS.TerritoryID;
```