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https://github.com/sufiyanahmed4566/-sql-crm-database-system-with-insights-and-queries-
This SQL project is a simple Customer Relationship Management (CRM) database. It includes tables for customers, products, orders, employees, and activities. With over 100 queries, it helps explore and analyze individual tables and the entire database, providing valuable insights into customer interactions and business operations.
https://github.com/sufiyanahmed4566/-sql-crm-database-system-with-insights-and-queries-
Last synced: about 1 month ago
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This SQL project is a simple Customer Relationship Management (CRM) database. It includes tables for customers, products, orders, employees, and activities. With over 100 queries, it helps explore and analyze individual tables and the entire database, providing valuable insights into customer interactions and business operations.
- Host: GitHub
- URL: https://github.com/sufiyanahmed4566/-sql-crm-database-system-with-insights-and-queries-
- Owner: SufiyanAhmed4566
- Created: 2024-11-24T10:03:15.000Z (about 2 months ago)
- Default Branch: main
- Last Pushed: 2024-12-01T11:35:00.000Z (about 2 months ago)
- Last Synced: 2024-12-01T12:33:43.625Z (about 2 months ago)
- Size: 1.02 MB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 6
-
Metadata Files:
- Readme: README.md
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README
# Customer Relationship Management (CRM) SQL Project
A comprehensive SQL-based project focusing on Customer Relationship Management (CRM) for businesses.
## *Features*
- Database Tables: Customers, Products, Orders, OrderDetails, Employees, Activities
- Relationships: Properly defined foreign key constraints
- Extensive Queries: Includes more than 100 SQL queries for data retrieval, insights, and analytics
## ER Diagram
## *Database Schema Overview*
### *Tables and Relationships*
1. *Customer Table*
Stores information about customers.
```
CREATE TABLE Customer (
CustomerID INT PRIMARY KEY,
Name VARCHAR(255),
Email VARCHAR(255),
Phone VARCHAR(20),
Address VARCHAR(255)
);
```
2. *Product Table*
Stores details of products.
```
CREATE TABLE Product (
ProductID INT PRIMARY KEY,
Name VARCHAR(255),
Description TEXT,
Price DECIMAL(10, 2)
);
```
3. *Orders Table*
Tracks customer orders.
```
CREATE TABLE Orders (
OrderID INT PRIMARY KEY,
CustomerID INT REFERENCES Customer(CustomerID),
OrderDate DATE,
TotalAmount DECIMAL(10, 2)
);
```
4. *OrderDetail Table*
Details the products in each order.
```
CREATE TABLE OrderDetail (
OrderDetailID INT PRIMARY KEY,
OrderID INT REFERENCES Orders(OrderID),
ProductID INT REFERENCES Product(ProductID),
Quantity INT,
UnitPrice DECIMAL(10, 2)
);
```
5. *Employee Table*
Manages employee information.
```
CREATE TABLE Employee (
EmployeeID INT PRIMARY KEY,
Name VARCHAR(255),
Email VARCHAR(255),
Phone VARCHAR(20),
Position VARCHAR(100)
);
```
6. *Activity Table*
Logs activities within the system.
```
CREATE TABLE Activity (
ActivityID INT PRIMARY KEY,
Type VARCHAR(100),
Description TEXT,
Date DATE,
Time TIME
);
```
## *Key SQL Queries* *Individual Tables*
- Retrieve all customers from the Customer table: `SELECT * FROM Customer;`
- Find products priced above $50: `SELECT * FROM Product WHERE Price > 50;`
- Get total orders by each customer: `SELECT CustomerID, COUNT(*) AS TotalOrders FROM Orders GROUP BY CustomerID;`
*Insights from the Entire Database*
- Get the total revenue from all orders: `SELECT SUM(TotalAmount) AS TotalRevenue FROM Orders;`
- List top 5 products by quantity sold: `SELECT ProductID, SUM(Quantity) AS TotalSold FROM OrderDetail GROUP BY ProductID ORDER BY TotalSold DESC LIMIT 5;`
- Find employees involved in the most activities: `SELECT EmployeeID, COUNT(*) AS TotalActivities FROM Activity GROUP BY EmployeeID ORDER BY TotalActivities DESC;`
*How to Use*
1. Clone the Repository: `git clone (link unavailable)
2. Set Up the Database: Execute the SQL scripts for table creation and relationships in your preferred database (e.g., MySQL, PostgreSQL, or Oracle). Load sample data using the provided scripts.
3. Run Queries: Use the provided SQL query files to extract insights or customize them to fit your needs.
## *Folder Structure*
```
crm-sql-project/
├── (link unavailable) # Project Documentation
├── schema.sql # Database schema
├── sample-data.sql # Sample data for testing
├── queries/ # Predefined SQL queries
│ ├── customers.sql
│ ├── products.sql
│ ├── orders.sql
│ ├── insights.sql
├── LICENSE # License file
```