Update Operation

Python Programming Training Certification

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Python is one of the world’s top programming languages used today and Python training has become the most popular training across individuals. Training Basket’s Python Training & Certification course covers basic and advanced Python concepts and how to apply them in real-world applications.Python is a flexible and powerful open-source language that is easy to learn and consists of powerful libraries for data analysis and manipulation. Our Python training course content is curated by experts as per the standard Industry curriculum. The curriculum, coding challenges and real-life problems cover data operations in Python, strings, conditional statements, error handling, shell scripting, web scraping and the commonly used Python web framework Django. Take this Python training and certification course and become job-ready now.

Update Operation

The UPDATE-SET statement is used to update any column inside the table. The following SQL query is used to update a column.

  • <> update Employee set name = ‘alex’ where id = 110

Consider the following example.

Examplestrong>

  • import mysql.connector

    #Create the connection object
    myconn = mysql.connector.connect(host = “localhost”, user = “root”,passwd = “google”,database = “PythonDB”)

    #creating the cursor object
    cur = myconn.cursor()

    try:
    #updating the name of the employee whose id is 110
    cur.execute(“update Employee set name = ‘alex’ where id = 110”)
    myconn.commit()
    except:

    myconn.rollback()

    myconn.close()

Update Operation


Delete Operation

The DELETE FROM statement is used to delete a specific record from the table. Here, we must impose a condition using WHERE clause otherwise all the records from the table will be removed.

The following SQL query is used to delete the employee detail whose id is 110 from the table.

  • > delete from Employee where id = 110

Consider the following example.

Example

  • import mysql.connector

    #Create the connection object
    myconn = mysql.connector.connect(host = “localhost”, user = “root”,passwd = “google”,database = “PythonDB”)

    #creating the cursor object
    cur = myconn.cursor()

    try:
    #Deleting the employee details whose id is 110
    cur.execute(“delete from Employee where id = 110”)
    myconn.commit()
    except:

    myconn.rollback()

    myconn.close()

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