Python MySql Alter Table

Sometimes, we may forget to create some columns, or we may need to update the table schema. The alter statement used to alter the table schema if required. Here, we will add the column branch_name to the table Employee.

MySql Alter Table Syntax

The following SQL query is used for this purpose.

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alter table Employee add branch_name varchar(20) not null

Alter Database Table Example:

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import mysql.connector  
myconn = mysql.connector.connect(host = "localhost", user = "root",password = "naveen",database = "PythonDB")  
cur = myconn.cursor()    
    #adding a column branch name to the table Employee  
    cur.execute("alter table Employee add branch_name varchar(20) not null")