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初级

查询单日交易次数超过2次的账户

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_02/offices.csv").read()
    staff_csv = open_url("https://data.zuihe.com/dbd/core/state_02/staff.csv").read()
    savings_products_csv = open_url("https://data.zuihe.com/dbd/core/state_02/savings_products.csv").read()
    clients_csv = open_url("https://data.zuihe.com/dbd/core/state_02/clients.csv").read()
    savings_accounts_csv = open_url("https://data.zuihe.com/dbd/core/state_02/savings_accounts.csv").read()
    savings_account_transactions_csv = open_url("https://data.zuihe.com/dbd/core/state_02/savings_account_transactions.csv").read()
    import sqlite3
    import pandas as pd
    from io import StringIO

    conn = sqlite3.connect(':memory:')
    pd.read_csv(StringIO(savings_account_transactions_csv)).to_sql('savings_account_transactions', conn, index=False, if_exists='replace')

    result = pd.read_sql_query("""
        SELECT account_id, transaction_date, COUNT(*) AS daily_count
        FROM savings_account_transactions
        GROUP BY account_id, transaction_date
        HAVING daily_count > 2
        ORDER BY daily_count DESC
    """, conn)
    if result.empty:
        print('无单日交易次数超过2次的账户')
    else:
        print(result.to_string(index=False))
    conn.close()

示例

输入
solve()
期望输出
无单日交易次数超过2次的账户
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