Database connections in Python are typically short-lived, so you don't need to manually refresh them in most cases. Instead, you create a new connection when you need to interact with the database.
Here's an example of how you can create a new MySQL database connection using the
Mysql-connector-python library:
Now the code driven,
import Mysqlconnector
# Create a new database connection
def create_connection():
try:
connection = mysql.connector.connect(
host="your_host",
user="your_username",
password="your_password",
database="your_database"
)
return connection
except mysql.connector.Error as err:
print(f"Error: {err}")
return None
# Usage example
connection = create_connection()
if connection is not None:
try:
# Perform database operations here
cursor = connection.cursor()
cursor.execute("SELECT * FROM your_table")
data = cursor.fetchall()
for row in data:
print(row)
# Close the cursor and the connection when done
cursor.close()
connection.close()
except mysql.connector.Error as err:
print(f"Error: {err}")
else:
print("Failed to establish a database connection.")
In this example, a new connection is created each time you need to interact with the database. This approach ensures that you always have a fresh connection to the database without the need for explicit "refreshing."
If your goal is to check for changes in the data periodically, you would typically query the database at regular intervals to see if any updates are needed rather than refreshing the connection itself. You could use a scheduler like cron (on Unix-like systems) or schedule (a Python library) to trigger database queries at specified intervals.