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  1. To connect Python applications to Microsoft SQL Server, you can use the latest mssql-python driver from Microsoft, which offers better performance and integration than older drivers like pyodbc. Below is how you can configure and use it effectively.

    1. Install Required Packages

    Open a terminal and install the driver along with environment variable support:

    pip install mssql-python python-dotenv
    Cóipeáilte!

    This ensures you can manage connection strings securely via a .env file.

    2. Create Environment Configuration

    In your project directory, create a .env file:

    SQL_CONNECTION_STRING="Server=<server_name>;Database=<database_name>;Encrypt=yes;TrustServerCertificate=no;Authentication=ActiveDirectoryInteractive"
    Cóipeáilte!

    Replace placeholders with your actual server and database details. This keeps credentials out of your codebase.

    3. Connect and Query the Database

    Create a Python script (app.py) to load the configuration and connect:

    from os import getenv
    from dotenv import load_dotenv
    from mssql_python import connect

    load_dotenv()
    conn = connect(getenv("SQL_CONNECTION_STRING"))
    cursor = conn.cursor()

    cursor.execute("""
    SELECT TOP 5 CustomerID, CompanyName
    FROM SalesLT.Customer
    ORDER BY CustomerID DESC;
    """)

    for row in cursor.fetchall():
    print(row)

    cursor.close()
    conn.close()
    Cóipeáilte!
  1. Microsoft Python Driver for SQL Server

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