Python MySQL Create Database

Last modified on: October 20, 2024

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<h3><strong>Creating a Database in MySQL with Python</strong></h3>
<p>This guide will walk you through the steps to create a database in MySQL using Python.</p>
<hr />
<h3><strong>1. Install Required Libraries</strong></h3>
<p>Ensure you have the <code>mysql-connector-python</code> library installed. If you haven't installed it yet, you can do so using pip:</p>
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<pre class="language-python"><code>pip install mysql-connector-python
</code></pre>
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<h3><strong>2. Import the MySQL Connector Library</strong></h3>
<p>Start by importing the required library in your Python script:</p>
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<pre class="language-python"><code>import mysql.connector
from mysql.connector import Error
</code></pre>
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<h3><strong>3. Establish a Connection to MySQL</strong></h3>
<p>You need to establish a connection to your MySQL server. Here&rsquo;s a function to connect to the MySQL server:</p>
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<pre class="language-python"><code>def create_connection(host_name, user_name, user_password):
    connection = None
    try:
        connection = mysql.connector.connect(
            host=host_name,
            user=user_name,
            password=user_password
        )
        print("Connection to MySQL DB successful")
    except Error as e:
        print(f"The error '{e}' occurred")
    return connection
</code></pre>
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<h3><strong>4. Create a Database</strong></h3>
<p>Now, you can create a function to create a new database:</p>
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<pre class="language-python"><code>def create_database(connection, db_name):
    cursor = connection.cursor()
    try:
        cursor.execute(f"CREATE DATABASE {db_name};")
        print(f"Database '{db_name}' created successfully")
    except Error as e:
        print(f"The error '{e}' occurred")
</code></pre>
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<h3><strong>5. Putting It All Together</strong></h3>
<p>Here&rsquo;s a complete example that connects to the MySQL server and creates a new database:</p>
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<pre class="language-python"><code># Import the necessary libraries
import mysql.connector
from mysql.connector import Error

# Function to create a connection
def create_connection(host_name, user_name, user_password):
    connection = None
    try:
        connection = mysql.connector.connect(
            host=host_name,
            user=user_name,
            password=user_password
        )
        print("Connection to MySQL DB successful")
    except Error as e:
        print(f"The error '{e}' occurred")
    return connection

# Function to create a database
def create_database(connection, db_name):
    cursor = connection.cursor()
    try:
        cursor.execute(f"CREATE DATABASE {db_name};")
        print(f"Database '{db_name}' created successfully")
    except Error as e:
        print(f"The error '{e}' occurred")

# Main logic
if __name__ == "__main__":
    # Establish a connection to the MySQL server
    connection = create_connection("localhost", "your_username", "your_password")
    
    # Create a new database
    create_database(connection, "my_new_database")

# Close the connection
    if connection.is_connected():
        connection.close()
        print("Connection closed")
</code></pre>
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<h3><strong>6. Running the Script</strong></h3>
<ol>
<li>Replace <code>your_username</code> and <code>your_password</code> with your MySQL username and password.</li>
<li>Run the script. If successful, it will create a new database named <code>my_new_database</code>.</li>
</ol>
<h3><strong>Conclusion</strong></h3>
<p>In this tutorial, you learned how to:</p>
<ul>
<li>Connect to a MySQL server using Python.</li>
<li>Create a new database with a simple Python script.</li>
</ul>
<p>You can expand upon this foundation to perform other database operations as needed!</p>
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