In python, you can use cursor.execute () to update existing records in a MySQL database table using the sql UPDATE statement.

Syntax

cursor.execute("UPDATE table_name SET column1 = value1, column2 = value2, ... WHERE condition")

Update User Email

import mysql.connector

# Establish connection to MySQL server
connection = mysql.connector.connect(
    host="localhost",
    user="root",
    password="password",
    database="mydatabase"
)

cursor = connection.cursor()

# Update a specific record in the 'users' table
update_query = "UPDATE users SET email = 'new_email@example.com' WHERE id = 1"
cursor.execute(update_query)

# Commit the changes
connection.commit()

# Verify the update
cursor.execute("SELECT * FROM users WHERE id = 1")
updated_user = cursor.fetchone()
print("Updated User:", updated_user)

connection.close()

In this example, An UPDATE query is executed to change the email address of the user with id = 1 in the users table. The connection.commit() method is called to save the changes permanently.