MediumNo. 2292LeetCode Premium

Products With Three or More Orders in Two Consecutive Years — LeetCode 2292 Python Solution

Topics
Database
Reading time
3 min

Table schema

SQLTable schema
Table: Orders +---------------+------+ | Column Name | Type | +---------------+------+ | order_id | int | | product_id | int | | quantity | int | | purchase_date | date | +---------------+------+ order_id contains unique values. Each row in this table contains the ID of an order, the id of the product purchased, the quantity, and the purchase date.

Example

SQLExample
+---------------+------+
| Column Name   | Type |
+---------------+------+
| order_id      | int  |
| product_id    | int  |
| quantity      | int  |
| purchase_date | date |
+---------------+------+
order_id contains unique values.
Each row in this table contains the ID of an order, the id of the product purchased, the quantity, and the purchase date.

Python solution

PythonSolution
import duckdb
import pandas as pd

def solution(orders: pd.DataFrame) -> pd.DataFrame:
    con = duckdb.connect()
    con.register("Orders", orders)
    return con.execute("""WITH
    P AS (
        SELECT product_id, YEAR(purchase_date) AS y, COUNT(1) >= 3 AS mark
        FROM Orders
        GROUP BY 1, 2
    )
SELECT DISTINCT p1.product_id
FROM
    P AS p1
    JOIN P AS p2 ON p1.y = p2.y - 1 AND p1.product_id = p2.product_id
WHERE p1.mark AND p2.mark;""").df()

Complexity

Time
O(n log n)(typical)
Space · auxiliary
O(n)

Related problems

Related problems
No.ProblemDifficulty
0175Combine Two TablesEasy
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0178Rank ScoresMedium
0180Consecutive NumbersMedium
0181Employees Earning More Than Their ManagersEasy

Frequently asked questions

How hard is LeetCode 2292. Products With Three or More Orders in Two Consecutive Years?

LeetCode 2292. Products With Three or More Orders in Two Consecutive Years is rated Medium on LeetCode.

What topics does LeetCode 2292. Products With Three or More Orders in Two Consecutive Years cover?

LeetCode 2292. Products With Three or More Orders in Two Consecutive Years is tagged Database on LeetCode.

Is LeetCode 2292. Products With Three or More Orders in Two Consecutive Years a premium problem?

Yes. LeetCode 2292. Products With Three or More Orders in Two Consecutive Years is a LeetCode Premium problem, so the full statement and test cases require a paid LeetCode subscription.

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