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How to Get the Minimum and maximum Value of a Column of a MySQL Table Using Python?

  • Last Updated : 23 Dec, 2020

Prerequisite: Python: MySQL Create Table

In this article, we are going to see how to get the Minimum and Maximum Value of a Column of a MySQL Table Using Python. Python allows the integration of a wide range of database servers with applications. A database interface is required to access a database from Python. MySQL Connector-Python module is an API in python for communicating with a MySQL database. 

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Database in use:



We are going to use geeks(Database name) database and table describing the salary.

Approach:

  • Import module.
  • Make a connection request with the database.
  • Create an object for the database cursor.
  • Execute the following MySQL query:
SELECT MIN(Column_name) AS minimum FROM Table_name.
SELECT MAX(Column_name) AS minimum FROM Table_name.
  • And print the result.

Example 1: Getting the minimum value of a column.

Python3




# Establish connection to MySQL database
import mysql.connector
  
mydb = mysql.connector.connect(
  host = "localhost",
  user = "root",
  password = "root123",
  database = "geeks"
)
  
# Create a cursor object
cursor = mydb.cursor()
  
# Execute the query 
cursor.execute("SELECT MIN(Value) AS minimum FROM salary")
  
result = cursor.fetchall()
  
for i in result:
    maximum= float(i[0])
    print(maximum)
  
# Close database connection
mydb.close()

Output:

200.0

Example 2: Getting the maximum value of a column.

Python3




# Establish connection to MySQL database
import mysql.connector
  
mydb = mysql.connector.connect(
  host = "localhost",
  user = "root",
  password = "root123",
  database = "geeks"
)
  
# Create a cursor object
cursor = mydb.cursor()
  
cursor.execute("SELECT MAX(Value) AS maximum FROM salary")
  
result = cursor.fetchall()
  
for i in result:
    maximum = float(i[0])
    print(maximum)
  
# Close database connection
mydb.close()

Output:

350030.0



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