Connect python to mysql database

Question :

How to connect python to mysql database.

Subject

Python

Standard

Computer Science Engineering

Views

1966

Asked By

Anaisha

Prisha
Answer / Solution

Install the MySQL Connector/Python library. You can do this using the pip command:

pip install mysql-connector-python

Import the mysql.connector module into your Python code:

import mysql.connector

Create a connection object to the MySQL database. You will need to pass the following information to the connect() method:
- The hostname or IP address of the MySQL server.
- The username and password for the MySQL user account that you want to use.
- The name of the database that you want to connect to.

connection = mysql.connector.connect(
    host="localhost",
    user="root",
    password="password",
    database="my_database"
)

Once you have created a connection object, you can use it to execute SQL queries. For example, the following code will select all of the rows from the users table:

cursor = connection.cursor()
cursor.execute("SELECT * FROM users")

for row in cursor:
    print(row)

When you are finished using the connection object, you should close it. You can do this using the close() method:

connection.close()

Here is an example of a complete Python code that connects to a MySQL database and executes a SQL query:

import mysql.connector
def main():
    connection = mysql.connector.connect(
        host="localhost",
        user="root",
        password="password",
        database="my_database"
    )
    cursor = connection.cursor()
    cursor.execute("SELECT * FROM users")
    for row in cursor:
        print(row)
    connection.close()
if __name__ == "__main__":
    main()

This code will connect to the MySQL database my_database on the local host and select all of the rows from the users table. The results of the query will be printed to the console.

Anaisha
Answer / Solution

Sure, here is how to connect Python to MySQL database:

Install the MySQL Connector/Python library. You can do this with the following command:

pip install mysql-connector-python

Import the MySQLConnector module into your Python script.

import mysql.connector

Create a connection object to the MySQL database. You will need to specify the following connection parameters:

host: The hostname of the MySQL server.
username: The username for the MySQL database.
password: The password for the MySQL database.
database: The name of the MySQL database.

connection = mysql.connector.connect(
    host="localhost",
    username="root",
    password="password",
    database="mydatabase"
)

Create a cursor object from the connection object. The cursor object will be used to execute SQL queries.

cursor = connection.cursor()

Execute a SQL query. In this example, we are executing a SELECT query to select all rows from the users table.

cursor.execute("SELECT * FRO

Fetch the results of the SQL query. The results of the SQL query will be stored in a list of tuples.

results = cursor.fetchall()

Close the cursor object and the connection object.

cursor.close()
connection.close()

Here is a complete example of connecting Python to MySQL database:

import mysql.connector

connection = mysql.connector.connect(
    host="localhost",
    username="root",
    password="password",
    database="mydatabase"
)

cursor = connection.cursor()

cursor.execute("SELECT * FROM users")

results = cursor.fetchall()

for row in results:
    print(row)

cursor.close()
connection.close()