Easy way to connect python with mysql
Python with MySQL Connectivity: Database & Table for class 12 computer science 083 new - project 2022-2023 | how to connect python with mysql
What is MySQL?
MySQL is an Open-Source database and one of the best type of RDBMS (Relational Database Management System). Co-founder of MySQLdb is Michael Widenius’s, and also MySQL name derives from the daughter of Michael.
How to Install MySQL Connector Python on Windows, Linux/Unix
Install MySQL in Linux/Unix:
Download RPM package for Linux/Unix from Official site: https://www.mysql.com/downloads/
In terminal use following command
rpm -i <Package_name>
Example rpm -i MySQL-5.0.9.0.i386.rpm
How to Install MySQL Connector Library for Python
Here is how to connect MySQL with Python:How to Install pip
For Python 2.7 or lower install using pip as:
pip install mysql-connector
For Python 3 or higher version install using pip3 as:
pip3 install mysql-connector
Test the MySQL Database connection with Python
To test MySQL database connectivity in Python here, we will use pre-installed MySQL connector and pass credentials into connect() function like host, username and password as shown in the below Python MySQL connector example.
Syntax to access MySQL with Python:
import mysql.connector
db_connection = mysql.connector.connect(
host="hostname",
user="username",
passwd="password"
)
Example:
import mysql.connector
db_connection = mysql.connector.connect(
host="localhost",
user="root",
passwd="root"
)
print(db_connection)
Output:
<mysql.connector.connection.MySQLConnection object at 0x000002338A4C6B00>
Creating Database in MySQL using Python
Syntax to Create new database in SQL is
CREATE DATABASE "database_name"
Now we create database using database programming in Python
import mysql.connector
db_connection = mysql.connector.connect(
host= "localhost",
user= "root",
passwd= "root"
)
# creating database_cursor to perform SQL operation
db_cursor = db_connection.cursor()
# executing cursor with execute method and pass SQL query
db_cursor.execute("CREATE DATABASE my_first_db")
# get list of all databases
db_cursor.execute("SHOW DATABASES")
#print all databases
for db in db_cursor:
print(db)
Insert Operation with MySQL in Python:
Let’s perform insertion operation in MySQL Database table which we already create. We will insert data oi STUDENT table and EMPLOYEE table.
SQL Syntax:
INSERT INTO student (id, name) VALUES (01, "John")
INSERT INTO employee (id, name, salary) VALUES(01, "John", 10000)
Example:
import mysql.connector
db_connection = mysql.connector.connect(
host="localhost",
user="root",
passwd="root",
database="my_first_db"
)
db_cursor = db_connection.cursor()
student_sql_query = "INSERT INTO student(id,name) VALUES(01, 'John')"
employee_sql_query = " INSERT INTO employee (id, name, salary) VALUES (01, 'John', 10000)"
#Execute cursor and pass query as well as student data
db_cursor.execute(student_sql_query)
#Execute cursor and pass query of employee and data of employee
db_cursor.execute(employee_sql_query)
db_connection.commit()
print(db_cursor.rowcount, "Record Inserted")
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