将SQL INSERT插入循环到多个行中

import mysql.connector

# 连接到MySQL数据库
cnx = mysql.connector.connect(user='username', password='password',
                              host='localhost', database='database_name')

# 创建游标对象
cursor = cnx.cursor()

# 定义要插入的数据和行数
data = [('John', 'Doe'), ('Jane', 'Smith'), ('Bob', 'Johnson')]
num_rows = len(data)

# 循环插入数据
for i in range(num_rows):
    # 构建INSERT语句
    insert_query = "INSERT INTO table_name (column1, column2) VALUES (%s, %s)"
    
    # 执行INSERT语句
    cursor.execute(insert_query, data[i])

# 提交事务
cnx.commit()

# 关闭游标和数据库连接
cursor.close()
cnx.close()