In this article, I have discussed how to connect to MySQL database remotely using python. For any application, it is very important to store the database on a server for easy data access. It is quite complicated to connect to the database remotely because every service provider doesn’t provide remote access to the MySQL database. Here I am using python’s MySQLdb module for connecting to our database which is at any server that provides remote access.
What is MYSQLdb?
MySQLdb is an interface for connecting to a MySQL database server from Python. It implements the Python Database API v2.0 and is built on top of the MySQL C API.
Packages to Install
mysql-connector-python mysql-python
If using anaconda
conda install -c anaconda mysql-python conda install -c anaconda mysql-connector-python
else
pip install MySQL-python pip install MySQL-python-connector
Import-Package
import MYSQLdb
How to connect to a remote MySQL database using python?
Before we start you should know the basics of SQL. Now let us discuss the methods used in this code:
- connect(): This method is used for creating a connection to our database it has four arguments:
- Server Name
- Database User Name
- Database Password
- Database Name
- cursor(): This method creates a cursor object that is capable of executing SQL queries on the database.
- execute(): This method is used for executing SQL queries on the database. It takes a sql query( as string) as an argument.
- fetchone(): This method retrieves the next row of a query result set and returns a single sequence, or None if no more rows are available.
- close() : This method close the database connection.
Free remote mysql database providers:
1.www.freemysqlhosting.net
2.www.heliohost.org
Python3
'''This code would not be run on neveropen IDEbecause required moduleare not installed on IDE. Also this code requiresa remote MySQL databaseconnection with validHostname, Dbusername Password and Dbname''' # Module For Connecting To MySQL databaseimport MySQLdb# Function for connecting to MySQL databasedef mysqlconnect(): #Trying to connect try: db_connection= MySQLdb.connect ("Hostname","dbusername","password","dbname") # If connection is not successful except: print("Can't connect to database") return 0 # If Connection Is Successful print("Connected") # Making Cursor Object For Query Execution cursor=db_connection.cursor() # Executing Query cursor.execute("SELECT CURDATE();") # Above Query Gives Us The Current Date # Fetching Data m = cursor.fetchone() # Printing Result Of Above print("Today's Date Is ",m[0]) # Closing Database Connection db_connection.close()# Function Call For Connecting To Our Databasemysqlconnect() |
Connected Today's Date Is 2017-11-14
Python3
# Python code to illustrate and create a# table in databaseimport mysql.connector as mysql# Open database connectiondb = mysql.connect(host="localhost",user="root",password="tiger",database="python")cursor = db.cursor()# Drop table if it already exist using execute()cursor.execute("DROP TABLE IF EXISTS EMPLOYEE")# Create table as per requirementsql = "CREATE TABLE EMPLOYEE ( FNAME CHAR(20) NOT NULL, LNAME CHAR(20), AGE INT )"cursor.execute(sql) #table created# disconnect from serverdb.close() |
Output:
