Welcome to our guide on establishing a database connection. Below are the steps to connect to a database using various methods.

Connection Methods

  1. Using JDBC

    • Download the JDBC driver for your database.
    • Set up the connection URL, username, and password.
    • Use the DriverManager.getConnection() method to establish the connection.

  2. Using Python

    • Install the sqlite3 or pymysql package.
    • Use the sqlite3.connect() or pymysql.connect() method to establish the connection.

  3. Using Node.js

    • Install the mysql or pg package.
    • Use the mysql.createConnection() or pg.connect() method to establish the connection.

Example

Here's a simple example of a database connection using Python and SQLite:

import sqlite3

# Connect to the database
conn = sqlite3.connect('example.db')
cursor = conn.cursor()

# Create a table
cursor.execute('''CREATE TABLE IF NOT EXISTS users
                  (id INTEGER PRIMARY KEY, name TEXT, email TEXT)''')

# Insert a record
cursor.execute("INSERT INTO users (name, email) VALUES ('John Doe', 'john@example.com')")

# Commit the changes
conn.commit()

# Close the connection
conn.close()

For more information on Python database connections, visit our Python Database Connection Guide.

Image

[

Database Connection Example
]