← 返回题库
初级

查询各产品账户余额分布

未完成
初级参考 完整示例代码供参考,建议自己理解后重新输入
def solve():
    from pyodide.http import open_url
    offices_csv = open_url("https://data.zuihe.com/dbd/core/state_06/offices.csv").read()
    staff_csv = open_url("https://data.zuihe.com/dbd/core/state_06/staff.csv").read()
    savings_products_csv = open_url("https://data.zuihe.com/dbd/core/state_06/savings_products.csv").read()
    clients_csv = open_url("https://data.zuihe.com/dbd/core/state_06/clients.csv").read()
    savings_accounts_csv = open_url("https://data.zuihe.com/dbd/core/state_06/savings_accounts.csv").read()
    savings_account_transactions_csv = open_url("https://data.zuihe.com/dbd/core/state_06/savings_account_transactions.csv").read()
    gl_accounts_csv = open_url("https://data.zuihe.com/dbd/core/state_06/gl_accounts.csv").read()
    charges_csv = open_url("https://data.zuihe.com/dbd/core/state_06/charges.csv").read()
    savings_account_charges_csv = open_url("https://data.zuihe.com/dbd/core/state_06/savings_account_charges.csv").read()
    import sqlite3, pandas as pd
    from io import StringIO
    conn = sqlite3.connect(':memory:')
    pd.read_csv(StringIO(savings_products_csv)).to_sql('savings_products', conn, index=False, if_exists='replace')
    pd.read_csv(StringIO(savings_accounts_csv)).to_sql('savings_accounts', conn, index=False, if_exists='replace')
    result = pd.read_sql_query("""
        SELECT sp.name AS product_name, MAX(a.balance) AS max_balance,
               MIN(a.balance) AS min_balance, ROUND(AVG(a.balance),2) AS avg_balance
        FROM savings_accounts a JOIN savings_products sp ON a.product_id=sp.id
        GROUP BY sp.id, sp.name ORDER BY avg_balance DESC
    """, conn)
    print(result.to_string(index=False))
    conn.close()

示例

输入
solve()
期望输出
product_name  max_balance  min_balance  avg_balance
      活期存款账户    1250000.0       3100.0     169404.0
Python 代码 🔒 登录后使用
🔒

登录后即可练习

注册免费账号,在浏览器中直接运行 Python 代码