Prerequisite:Python: MySQL Create Table
In this article, we are going to see how to count the table 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.
We are going to usegeeks(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 count(*) AS New_column_name FROM information_schema.columns where table_name = 'Table_name';
Example 1:
In this example we are using this database with the following query;
Python3# Establish connection to MySQL databaseimportmysql.connectormydb=mysql.connector.connect(host="localhost",user="root",password="root123",database="geeks")# Create a cursor objectmycursor=mydb.cursor()# Execute the queryquery="SELECT count(*) AS New_column_name FROM information_schema.columns where table_name = 'Persons';"mycursor.execute(query)myresult=mycursor.fetchall()print(myresult[-1][-1])# Close database connectionmydb.close()
Output;
5
Example 2:
In this example we are using this database with the following query;
Python3# Establish connection to MySQL databaseimportmysql.connectormydb=mysql.connector.connect(host="localhost",user="root",password="root123",database="geeks")# Create a cursor objectmycursor=mydb.cursor()# Execute the queryquery="SELECT count(*) AS New_column_name FROM information_schema.columns where table_name = 'Salary';"mycursor.execute(query)myresult=mycursor.fetchall()print(myresult[-1][-1])# Close database connectionmydb.close()
Output:
2