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Delete a Record from the Database in Python

Here, we are going to see a Python program to delete a specific record from the database using the id entered by the user.
Submitted by Shivang Yadav, on February 19, 2021

Problem Statement: Program to delete record from Database using the id entered by the user.

Solution:

We will use Python's pymysql library to work with the database. This library provides the programmer the functionality to run MySQL query using python.

Algorithm:

• Step 1: Connect to the database using connect() method in pymysql.
• Step 2: Get input of faculty ID from the user.
• Step 3: Write a query to fetch the details of the faculty and display it to the user.
• Step 4: Get confirmation input from the user.
• Step 5: If 'Yes', deleted record.

Python program to delete a Record from the Database

import  cpymysql as mysql

try:
    conn=mysql.connect(host='localhost',port=3306,user='root',password='123',db='myschool')
    cmd=conn.cursor()
    
    id=input("Enter Faculty Id U Want To Delete:")
    
    q="select * from faculties where fid='{}'".format(id)
    cmd.execute(q)
    
    row=cmd.fetchone()
    
    if(row==None):
        print("Not Found")
    else:
        print("ID:",row[0])
        print("Name:", row[1])
        print("Birth Date:", row[2])
        print("Department:", row[3])
        print("Salary:", row[4])
        
        ch=input("Are you Sure(yes/no)?")
        if(ch=='yes'):
            q="delete from faculties where fid={}".format(id)
            cmd.execute(q)
            conn.commit()
            print("Record Deleted....")
    conn.close()

except Exception as e:
    print("Error:",e)

Output:

Enter Faculty Id U Want To Delete: 03
ID: 03
Name: John
Birth Data: 12.4.1988
Department: computer Science
Salary: 45000
Are you Sure(yes/no)?yes
Record Deleted....

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