Payroll Management System

A comprehensive payroll management system built with Python, Streamlit, and MySQL. The system manages employee records, departments, projects, and salary details.

Database Schema

1. Employees Table

• emp_no: INT (Primary Key)
• first_name: VARCHAR
• last_name: VARCHAR
• job_title: VARCHAR
• basic_salary: DECIMAL
• department_id: INT (Foreign Key)

2. Departments Table

• department_id: INT (Primary Key)
• department_name: VARCHAR
• manager_id: INT (Foreign Key to Employees)

3. Projects Table

• project_id: INT (Primary Key)
• project_name: VARCHAR
• start_date: DATE
• end_date: DATE
• department_id: INT (Foreign Key to Departments)

4. Employee_Project Table (Many-to-Many Relationship)

• emp_no: INT (Foreign Key to Employees)
• project_id: INT (Foreign Key to Projects)
• hours_worked: DECIMAL

5. Salaries Table

• emp_no: INT (Foreign Key to Employees)
• salary_date: DATE
• basic_salary: DECIMAL
• da: DECIMAL
• hra: DECIMAL
• gross_salary: DECIMAL
• tax: DECIMAL
• net_salary: DECIMAL

Features

Database Connectivity and Setup

• Establishes connection to the MySQL database.
• Selects the CompanyManagementDB database for operations.
• Lists available tables (employees, departments, projects, employee_project, salaries).

Data Manipulation Functions

• Insert Data into Tables

  • Allows insertion of records into tables such as employees, departments, projects, employee_project, and salaries.
  • Automatically calculates DA, HRA, gross salary, tax, and net salary based on predefined formulas for salary insertions.

• Update Data in Tables

  • Provides functionality to update existing records in tables like employees, departments, projects, employee_project, and salaries.
  • Allows updating specific columns identified by the user.

• Delete Data from Tables

  • Enables deletion of records from tables such as employees, departments, projects, employee_project, and salaries.
  • Prompts for identification using primary keys (emp_no, department_id, project_id, etc.).

Payslip Generation

• Generate Payslip
  • Fetches and displays payslip details for a specific employee and salary date.
  • Calculates and displays components like basic salary, DA, HRA, gross salary, tax, and net salary in a formatted table using the tabulate library.

User Interface

• Streamlit Application
  • Provides a user-friendly web interface with options to insert, update, delete data, generate payslips, and view other functionalities.
  • Ensures intuitive navigation through the system functionalities.

Installation

1. Clone the repository:

   git clone https://github.com/PhenomSG/Payroll-Management-System.git

2. Navigate to the project directory:

   cd Payroll-Management-System

3. Install the required packages:

   pip install -r requirements.txt

4. Configure the MySQL database connection in the script.

Usage

1. Run the Streamlit application:

   streamlit run streamlit_app.py

2. Open your web browser and go to the provided URL to interact with the application.

License

This project is licensed under the MIT License.