Employee Management System using Python
Last Updated :
23 Jul, 2025
The task is to create a Database-driven Employee Management System in Python that will store the information in the MySQL Database. The script will contain the following operations :
- Add Employee
- Remove Employee
- Promote Employee
- Display Employees
The idea is that we perform different changes in our Employee Record by using different functions for example the Add_Employee will insert a new row in our Employee, also, we will create a Remove Employee Function which will delete the record of any particular existing employee in our Employee table. This System works on the concepts of taking the information from the database making required changes in the fetched data and applying the changes in the record which we will see in our Promote Employee System. We can also have information about all the existing employees by using the Display Employee function. The main advantage of connecting our program to the database is that the information becomes lossless even after closing our program a number of times.
Getting Started
For creating the Employee Management System in Python that uses MySQL database we need to connect Python with MySQL.
For making a connection we need to install mysqlconnector which can be done by writing the following command in the command prompt on Windows.
pip install mysql-connector-python
Now after the successful installation of the MySQL connector, we can connect MySQL with Python which can be done by writing the following code
Python
import mysql.connector
con = mysql.connector.connect(
host="localhost", user="root", password="password", database="emp")
Now we are Done with the connections, so we can focus on our Employee Management System
Table in Use:
Employee RecordThe idea is that we keep all the information about the Employee in the above table and manipulate the table whenever required. So now we will look at the working of each operation in detail.
Check Employee Function
The check employee function takes employee id as a parameter and checks whether any employee with given id exists in the employee details record or not. For checking this it uses cursor.rowcount() function which counts the number of rows that match with given details. It is a utility function, and we will see its use in later operations like Add employee function, etc.,
Python
def check_employee(employee_id):
# Query to select all rows from the employees table where id matches
sql = 'SELECT * FROM employees WHERE id=%s'
# Making cursor buffered to make rowcount method work properly
cursor = con.cursor(buffered=True)
data = (employee_id,)
# Executing the SQL Query
cursor.execute(sql, data)
# Fetch the first row to check if employee exists
employee = cursor.fetchone()
# Closing the cursor
cursor.close()
# If employee is found, return True, else return False
return employee is not None
Add Employee Function
The Add Employee function will ask for the Employee Id and uses the check employee function to check whether the employee to be added already exist in our record or not if employee details do not already exist then it asks for details of the employee to be added like Employee Name, Post of Employee and Salary of the employee. Now after getting all such details from the user of that system it simply inserts the information in our Employee details table.
Python
def add_employee():
Id = input("Enter Employee Id: ")
# Checking if Employee with given Id already exists
if check_employee(Id):
print("Employee already exists. Please try again.")
return
else:
Name = input("Enter Employee Name: ")
Post = input("Enter Employee Post: ")
Salary = input("Enter Employee Salary: ")
# Inserting Employee details into the employees table
sql = 'INSERT INTO employees (id, name, position, salary) VALUES (%s, %s, %s, %s)'
data = (Id, Name, Post, Salary)
cursor = con.cursor()
try:
# Executing the SQL Query
cursor.execute(sql, data)
# Committing the transaction
con.commit()
print("Employee Added Successfully")
except mysql.connector.Error as err:
print(f"Error: {err}")
con.rollback()
finally:
# Closing the cursor
cursor.close()
Remove Employee Function
The Remove Employee Function will simply ask for Id of the employee to be removed because Id is Primary key in our Employee Details Record as there can be two employees with the same name, but they must have a unique id. The Remove Employee function uses the check employee function to check whether the employee to be removed exists in our record or not if employee details exist then after getting a valid employee id it deletes the record corresponding to that employee id.
Python
def remove_employee():
Id = input("Enter Employee Id: ")
# Checking if Employee with given Id exists
if not check_employee(Id):
print("Employee does not exist. Please try again.")
return
else:
# Query to delete employee from the employees table
sql = 'DELETE FROM employees WHERE id=%s'
data = (Id,)
cursor = con.cursor()
try:
# Executing the SQL Query
cursor.execute(sql, data)
# Committing the transaction
con.commit()
print("Employee Removed Successfully")
except mysql.connector.Error as err:
print(f"Error: {err}")
con.rollback()
finally:
# Closing the cursor
cursor.close()
Promote Employee Function
The Promote Employee function will ask for the Employee Id and uses the check employee function to check whether the employee to be Promoted exist in our record or not if employee details exist then it will ask for the amount by which his salary is to be increased. After getting the valid details it increases the salary of the employee with the given id by the given amount.
Python
def promote_employee():
Id = input("Enter Employee's Id: ")
# Checking if Employee with given Id exists
if not check_employee(Id):
print("Employee does not exist. Please try again.")
return
else:
try:
Amount = float(input("Enter increase in Salary: "))
# Query to Fetch Salary of Employee with given Id
sql_select = 'SELECT salary FROM employees WHERE id=%s'
data = (Id,)
cursor = con.cursor()
# Executing the SQL Query
cursor.execute(sql_select, data)
# Fetching Salary of Employee with given Id
current_salary = cursor.fetchone()[0]
new_salary = current_salary + Amount
# Query to Update Salary of Employee with given Id
sql_update = 'UPDATE employees SET salary=%s WHERE id=%s'
data_update = (new_salary, Id)
# Executing the SQL Query to update salary
cursor.execute(sql_update, data_update)
# Committing the transaction
con.commit()
print("Employee Promoted Successfully")
except (ValueError, mysql.connector.Error) as e:
print(f"Error: {e}")
con.rollback()
finally:
# Closing the cursor
cursor.close()
Display Employees Function
The Display Employees function is simply a select query of SQL which fetches all the records stored in the employee details table and prints them line by line.
Python
def display_employees():
try:
# Query to select all rows from the employees table
sql = 'SELECT * FROM employees'
cursor = con.cursor()
# Executing the SQL Query
cursor.execute(sql)
# Fetching all details of all the Employees
employees = cursor.fetchall()
for employee in employees:
print("Employee Id : ", employee[0])
print("Employee Name : ", employee[1])
print("Employee Post : ", employee[2])
print("Employee Salary : ", employee[3])
print("------------------------------------")
except mysql.connector.Error as err:
print(f"Error: {err}")
finally:
# Closing the cursor
cursor.close()
Menu Function
The Menu function displays the menu to the user and asks the user to enter his choice for performing operations like Add employee, Remove employee, etc.
Python
def menu():
while True:
print("\nWelcome to Employee Management Record")
print("Press:")
print("1 to Add Employee")
print("2 to Remove Employee")
print("3 to Promote Employee")
print("4 to Display Employees")
print("5 to Exit")
# Taking choice from user
ch = input("Enter your Choice: ")
if ch == '1':
add_employee()
elif ch == '2':
remove_employee()
elif ch == '3':
promote_employee()
elif ch == '4':
display_employees()
elif ch == '5':
print("Exiting the program. Goodbye!")
break
else:
print("Invalid Choice! Please try again.")
Complete Code:
Python
import mysql.connector
# Database connection
con = mysql.connector.connect(
host="localhost",
user="root",
password="password",
database="emp"
)
cursor = con.cursor()
# Function to check if an employee exists
def check_employee(employee_id):
sql = 'SELECT * FROM employees WHERE id=%s'
cursor.execute(sql, (employee_id,))
return cursor.rowcount == 1
# Function to add an employee
def add_employee():
Id = input("Enter Employee Id: ")
if check_employee(Id):
print("Employee already exists. Please try again.")
return
Name = input("Enter Employee Name: ")
Post = input("Enter Employee Post: ")
Salary = input("Enter Employee Salary: ")
sql = 'INSERT INTO employees (id, name, position, salary) VALUES (%s, %s, %s, %s)'
data = (Id, Name, Post, Salary)
try:
cursor.execute(sql, data)
con.commit()
print("Employee Added Successfully")
except mysql.connector.Error as err:
print(f"Error: {err}")
con.rollback()
# Function to remove an employee
def remove_employee():
Id = input("Enter Employee Id: ")
if not check_employee(Id):
print("Employee does not exist. Please try again.")
return
sql = 'DELETE FROM employees WHERE id=%s'
data = (Id,)
try:
cursor.execute(sql, data)
con.commit()
print("Employee Removed Successfully")
except mysql.connector.Error as err:
print(f"Error: {err}")
con.rollback()
# Function to promote an employee
def promote_employee():
Id = input("Enter Employee's Id: ")
if not check_employee(Id):
print("Employee does not exist. Please try again.")
return
try:
Amount = float(input("Enter increase in Salary: "))
sql_select = 'SELECT salary FROM employees WHERE id=%s'
cursor.execute(sql_select, (Id,))
current_salary = cursor.fetchone()[0]
new_salary = current_salary + Amount
sql_update = 'UPDATE employees SET salary=%s WHERE id=%s'
cursor.execute(sql_update, (new_salary, Id))
con.commit()
print("Employee Promoted Successfully")
except (ValueError, mysql.connector.Error) as e:
print(f"Error: {e}")
con.rollback()
# Function to display all employees
def display_employees():
try:
sql = 'SELECT * FROM employees'
cursor.execute(sql)
employees = cursor.fetchall()
for employee in employees:
print("Employee Id : ", employee[0])
print("Employee Name : ", employee[1])
print("Employee Post : ", employee[2])
print("Employee Salary : ", employee[3])
print("------------------------------------")
except mysql.connector.Error as err:
print(f"Error: {err}")
# Function to display the menu
def menu():
while True:
print("\nWelcome to Employee Management Record")
print("Press:")
print("1 to Add Employee")
print("2 to Remove Employee")
print("3 to Promote Employee")
print("4 to Display Employees")
print("5 to Exit")
ch = input("Enter your Choice: ")
if ch == '1':
add_employee()
elif ch == '2':
remove_employee()
elif ch == '3':
promote_employee()
elif ch == '4':
display_employees()
elif ch == '5':
print("Exiting the program. Goodbye!")
break
else:
print("Invalid Choice! Please try again.")
if __name__ == "__main__":
menu()
Output
Similar Reads
Python Tutorial - Learn Python Programming Language Python is one of the most popular programming languages. Itâs simple to use, packed with features and supported by a wide range of libraries and frameworks. Its clean syntax makes it beginner-friendly. It'sA high-level language, used in web development, data science, automation, AI and more.Known fo
10 min read
Python Fundamentals
Python IntroductionPython was created by Guido van Rossum in 1991 and further developed by the Python Software Foundation. It was designed with focus on code readability and its syntax allows us to express concepts in fewer lines of code.Key Features of PythonPythonâs simple and readable syntax makes it beginner-frien
3 min read
Input and Output in PythonUnderstanding input and output operations is fundamental to Python programming. With the print() function, we can display output in various formats, while the input() function enables interaction with users by gathering input during program execution. Taking input in PythonPython's input() function
7 min read
Python VariablesIn Python, variables are used to store data that can be referenced and manipulated during program execution. A variable is essentially a name that is assigned to a value. Unlike many other programming languages, Python variables do not require explicit declaration of type. The type of the variable i
6 min read
Python OperatorsIn Python programming, Operators in general are used to perform operations on values and variables. These are standard symbols used for logical and arithmetic operations. In this article, we will look into different types of Python operators. OPERATORS: These are the special symbols. Eg- + , * , /,
6 min read
Python KeywordsKeywords in Python are reserved words that have special meanings and serve specific purposes in the language syntax. Python keywords cannot be used as the names of variables, functions, and classes or any other identifier. Getting List of all Python keywordsWe can also get all the keyword names usin
2 min read
Python Data TypesPython Data types are the classification or categorization of data items. It represents the kind of value that tells what operations can be performed on a particular data. Since everything is an object in Python programming, Python data types are classes and variables are instances (objects) of thes
9 min read
Conditional Statements in PythonConditional statements in Python are used to execute certain blocks of code based on specific conditions. These statements help control the flow of a program, making it behave differently in different situations.If Conditional Statement in PythonIf statement is the simplest form of a conditional sta
6 min read
Loops in Python - For, While and Nested LoopsLoops in Python are used to repeat actions efficiently. The main types are For loops (counting through items) and While loops (based on conditions). In this article, we will look at Python loops and understand their working with the help of examples. For Loop in PythonFor loops is used to iterate ov
9 min read
Python FunctionsPython Functions is a block of statements that does a specific task. The idea is to put some commonly or repeatedly done task together and make a function so that instead of writing the same code again and again for different inputs, we can do the function calls to reuse code contained in it over an
9 min read
Recursion in PythonRecursion involves a function calling itself directly or indirectly to solve a problem by breaking it down into simpler and more manageable parts. In Python, recursion is widely used for tasks that can be divided into identical subtasks.In Python, a recursive function is defined like any other funct
6 min read
Python Lambda FunctionsPython Lambda Functions are anonymous functions means that the function is without a name. As we already know the def keyword is used to define a normal function in Python. Similarly, the lambda keyword is used to define an anonymous function in Python. In the example, we defined a lambda function(u
6 min read
Python Data Structures
Python StringA string is a sequence of characters. Python treats anything inside quotes as a string. This includes letters, numbers, and symbols. Python has no character data type so single character is a string of length 1.Pythons = "GfG" print(s[1]) # access 2nd char s1 = s + s[0] # update print(s1) # printOut
6 min read
Python ListsIn Python, a list is a built-in dynamic sized array (automatically grows and shrinks). We can store all types of items (including another list) in a list. A list may contain mixed type of items, this is possible because a list mainly stores references at contiguous locations and actual items maybe s
6 min read
Python TuplesA tuple in Python is an immutable ordered collection of elements. Tuples are similar to lists, but unlike lists, they cannot be changed after their creation (i.e., they are immutable). Tuples can hold elements of different data types. The main characteristics of tuples are being ordered , heterogene
6 min read
Dictionaries in PythonPython dictionary is a data structure that stores the value in key: value pairs. Values in a dictionary can be of any data type and can be duplicated, whereas keys can't be repeated and must be immutable. Example: Here, The data is stored in key:value pairs in dictionaries, which makes it easier to
7 min read
Python SetsPython set is an unordered collection of multiple items having different datatypes. In Python, sets are mutable, unindexed and do not contain duplicates. The order of elements in a set is not preserved and can change.Creating a Set in PythonIn Python, the most basic and efficient method for creating
10 min read
Python ArraysLists in Python are the most flexible and commonly used data structure for sequential storage. They are similar to arrays in other languages but with several key differences:Dynamic Typing: Python lists can hold elements of different types in the same list. We can have an integer, a string and even
9 min read
List Comprehension in PythonList comprehension is a way to create lists using a concise syntax. It allows us to generate a new list by applying an expression to each item in an existing iterable (such as a list or range). This helps us to write cleaner, more readable code compared to traditional looping techniques.For example,
4 min read
Advanced Python
Python OOPs ConceptsObject Oriented Programming is a fundamental concept in Python, empowering developers to build modular, maintainable, and scalable applications. OOPs is a way of organizing code that uses objects and classes to represent real-world entities and their behavior. In OOPs, object has attributes thing th
11 min read
Python Exception HandlingPython Exception Handling handles errors that occur during the execution of a program. Exception handling allows to respond to the error, instead of crashing the running program. It enables you to catch and manage errors, making your code more robust and user-friendly. Let's look at an example:Handl
6 min read
File Handling in PythonFile handling refers to the process of performing operations on a file, such as creating, opening, reading, writing and closing it through a programming interface. It involves managing the data flow between the program and the file system on the storage device, ensuring that data is handled safely a
4 min read
Python Database TutorialPython being a high-level language provides support for various databases. We can connect and run queries for a particular database using Python and without writing raw queries in the terminal or shell of that particular database, we just need to have that database installed in our system.A database
4 min read
Python MongoDB TutorialMongoDB is a popular NoSQL database designed to store and manage data flexibly and at scale. Unlike traditional relational databases that use tables and rows, MongoDB stores data as JSON-like documents using a format called BSON (Binary JSON). This document-oriented model makes it easy to handle com
2 min read
Python MySQLMySQL is a widely used open-source relational database for managing structured data. Integrating it with Python enables efficient data storage, retrieval and manipulation within applications. To work with MySQL in Python, we use MySQL Connector, a driver that enables seamless integration between the
9 min read
Python PackagesPython packages are a way to organize and structure code by grouping related modules into directories. A package is essentially a folder that contains an __init__.py file and one or more Python files (modules). This organization helps manage and reuse code effectively, especially in larger projects.
12 min read
Python ModulesPython Module is a file that contains built-in functions, classes,its and variables. There are many Python modules, each with its specific work.In this article, we will cover all about Python modules, such as How to create our own simple module, Import Python modules, From statements in Python, we c
7 min read
Python DSA LibrariesData Structures and Algorithms (DSA) serve as the backbone for efficient problem-solving and software development. Python, known for its simplicity and versatility, offers a plethora of libraries and packages that facilitate the implementation of various DSA concepts. In this article, we'll delve in
15 min read
List of Python GUI Library and PackagesGraphical User Interfaces (GUIs) play a pivotal role in enhancing user interaction and experience. Python, known for its simplicity and versatility, has evolved into a prominent choice for building GUI applications. With the advent of Python 3, developers have been equipped with lots of tools and li
11 min read
Data Science with Python
NumPy Tutorial - Python LibraryNumPy (short for Numerical Python ) is one of the most fundamental libraries in Python for scientific computing. It provides support for large, multi-dimensional arrays and matrices along with a collection of mathematical functions to operate on arrays.At its core it introduces the ndarray (n-dimens
3 min read
Pandas TutorialPandas is an open-source software library designed for data manipulation and analysis. It provides data structures like series and DataFrames to easily clean, transform and analyze large datasets and integrates with other Python libraries, such as NumPy and Matplotlib. It offers functions for data t
6 min read
Matplotlib TutorialMatplotlib is an open-source visualization library for the Python programming language, widely used for creating static, animated and interactive plots. It provides an object-oriented API for embedding plots into applications using general-purpose GUI toolkits like Tkinter, Qt, GTK and wxPython. It
5 min read
Python Seaborn TutorialSeaborn is a library mostly used for statistical plotting in Python. It is built on top of Matplotlib and provides beautiful default styles and color palettes to make statistical plots more attractive.In this tutorial, we will learn about Python Seaborn from basics to advance using a huge dataset of
15+ min read
StatsModel Library- TutorialStatsmodels is a useful Python library for doing statistics and hypothesis testing. It provides tools for fitting various statistical models, performing tests and analyzing data. It is especially used for tasks in data science ,economics and other fields where understanding data is important. It is
4 min read
Learning Model Building in Scikit-learnBuilding machine learning models from scratch can be complex and time-consuming. Scikit-learn which is an open-source Python library which helps in making machine learning more accessible. It provides a straightforward, consistent interface for a variety of tasks like classification, regression, clu
8 min read
TensorFlow TutorialTensorFlow is an open-source machine-learning framework developed by Google. It is written in Python, making it accessible and easy to understand. It is designed to build and train machine learning (ML) and deep learning models. It is highly scalable for both research and production.It supports CPUs
2 min read
PyTorch TutorialPyTorch is an open-source deep learning framework designed to simplify the process of building neural networks and machine learning models. With its dynamic computation graph, PyTorch allows developers to modify the networkâs behavior in real-time, making it an excellent choice for both beginners an
7 min read
Web Development with Python
Flask TutorialFlask is a lightweight and powerful web framework for Python. Itâs often called a "micro-framework" because it provides the essentials for web development without unnecessary complexity. Unlike Django, which comes with built-in features like authentication and an admin panel, Flask keeps things mini
8 min read
Django Tutorial | Learn Django FrameworkDjango is a Python framework that simplifies web development by handling complex tasks for you. It follows the "Don't Repeat Yourself" (DRY) principle, promoting reusable components and making development faster. With built-in features like user authentication, database connections, and CRUD operati
10 min read
Django ORM - Inserting, Updating & Deleting DataDjango's Object-Relational Mapping (ORM) is one of the key features that simplifies interaction with the database. It allows developers to define their database schema in Python classes and manage data without writing raw SQL queries. The Django ORM bridges the gap between Python objects and databas
4 min read
Templating With Jinja2 in FlaskFlask is a lightweight WSGI framework that is built on Python programming. WSGI simply means Web Server Gateway Interface. Flask is widely used as a backend to develop a fully-fledged Website. And to make a sure website, templating is very important. Flask is supported by inbuilt template support na
6 min read
Django TemplatesTemplates are the third and most important part of Django's MVT Structure. A Django template is basically an HTML file that can also include CSS and JavaScript. The Django framework uses these templates to dynamically generate web pages that users interact with. Since Django primarily handles the ba
7 min read
Python | Build a REST API using FlaskPrerequisite: Introduction to Rest API REST stands for REpresentational State Transfer and is an architectural style used in modern web development. It defines a set or rules/constraints for a web application to send and receive data. In this article, we will build a REST API in Python using the Fla
3 min read
How to Create a basic API using Django Rest Framework ?Django REST Framework (DRF) is a powerful extension of Django that helps you build APIs quickly and easily. It simplifies exposing your Django models as RESTfulAPIs, which can be consumed by frontend apps, mobile clients or other services.Before creating an API, there are three main steps to underst
4 min read
Python Practice
Python QuizThese Python quiz questions are designed to help you become more familiar with Python and test your knowledge across various topics. From Python basics to advanced concepts, these topic-specific quizzes offer a comprehensive way to practice and assess your understanding of Python concepts. These Pyt
3 min read
Python Coding Practice ProblemsThis collection of Python coding practice problems is designed to help you improve your overall programming skills in Python.The links below lead to different topic pages, each containing coding problems, and this page also includes links to quizzes. You need to log in first to write your code. Your
1 min read
Python Interview Questions and AnswersPython is the most used language in top companies such as Intel, IBM, NASA, Pixar, Netflix, Facebook, JP Morgan Chase, Spotify and many more because of its simplicity and powerful libraries. To crack their Online Assessment and Interview Rounds as a Python developer, we need to master important Pyth
15+ min read