Select only specific columns from table in Python MySQL

Python MySQL - Select only specific columns from table

To select only specific columns from a MySQL table in Python program,

1. Create a connection to the MySQL database with user credentials and database name, using connect() function.
2. Get cursor object to the database using cursor() function.
3. Call execute() function on the cursor object, and pass the SELECT FROM table query. This SELECT query specifies the columns that we need to fetch from the table.
4. Call fetchall() function on the cursor object. The function returns an iterator to the records in the table, where each record is a tuple.

Example

Consider that there is a schema named mydatabase in MySQL. The credentials to access this database are, user: root and password: admin1234, and there is a table named fruits in mydatabase.

In the following program, we fetch only name and quantity columns from the table.

Python Program

import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",
  user="root",
  password="admin1234",
  database="mydatabase"
)

mycursor = mydb.cursor()

mycursor.execute("SELECT name, quantity FROM fruits")

myresult = mycursor.fetchall()

for row in myresult:
  print(row)

Output

('Apple', 25)
('Avocado', 37)
('Banana', 40)
('Mango', 15)

Summary

In this tutorial of Python Examples, we learned how to select only specific columns from a table in MySQL database, from a Python program.