How can I retrieve SQL result column values by column name in Python?

Retrieving SQL Result Column Values by Column Name in Python

In Python, when working with MySQL using the Python 3 programming language, retrieving SQL result column values by column name can be difficult. Instead, the common approach is to use column indexes. However, this method can become tedious and error-prone when dealing with large tables with multiple columns.

Fortunately, the MySQLdb module offers a solution through its DictCursor. This cursor type allows you to retrieve column values using their names, providing a much more convenient and readable approach.

To implement this, simply execute the following steps:

• Create a connection to the MySQL database using MySQLdb.
• Create a cursor using the MySQLdb.cursors.DictCursor class.
• Execute your SQL query using the cursor.
• Fetch all rows from the result set using the cursor's fetchall() method.
• Iterate over each row, accessing individual column values using their names, as shown in the example below:

import MySQLdb

connection = MySQLdb.connect(...)
cursor = connection.cursor(MySQLdb.cursors.DictCursor)
cursor.execute("SELECT name, category FROM animal")
result_set = cursor.fetchall()

for row in result_set:
    print("%s, %s" % (row["name"], row["category"]))

This approach significantly simplifies retrieving SQL result column values in Python, eliminating the need to constantly calculate and remember column indexes.

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