使用Python实现主数据管理的核心技术

import pandas as pd

# 加载数据

data = pd.read_csv('customer_data.csv')

# 清洗数据：去除重复值

data.drop_duplicates(inplace=True)

# 填充缺失值

data.fillna(method='ffill', inplace=True)

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# 合并多个数据源

orders = pd.read_csv('orders.csv')

products = pd.read_csv('products.csv')

merged_data = pd.merge(data, orders, on='CustomerID')

merged_data = pd.merge(merged_data, products, on='ProductID')

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# 定期检查并更新数据

def update_data(new_data):

global data

data = pd.concat([data, new_data], ignore_index=True)

data.drop_duplicates(inplace=True)

# 示例调用

update_data(pd.read_csv('new_customer_data.csv'))

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