• Skip to primary navigation
  • Skip to content
  • Skip to footer
Thomas Ngo Thomas Ngo Crafting Elegant Solutions Through Code
  • Home
  • Journal
  • Tags
  • About

    Thomas Ngo

    Software Engineer

    • Stanton, California
    • Email
    • GitHub
    • Resume

    SQL problem - Product Sales Analysis I

    February 5, 2024 less than 1 minute read

    Page Navigation

    • Problem
    • Query
    • Editorial Solution
    1 min read 101 words

    Problem

    problem

    Query

    SELECT 
        product_name,
        year,
        price
    FROM
        Sales AS s
    JOIN
        Product AS p
        ON s.product_id = p.product_id
    

    Editorial Solution

    SELECT 
        DISTINCT p.product_name, s.year, s.price
    FROM 
        Sales s
    JOIN 
        Product p
    ON
        s.product_id = p.product_id
    

    Tags: SQL

    Updated: February 5, 2024

    Share on

    X Facebook LinkedIn Bluesky
    Previous Next

    Leave a comment

    You may also enjoy

    Time Based Key-Value Store in C#

    3 minute read

    Learn how to build a time-based key-value store using a dictionary and binary search in C#.

    Search in Rotated Sorted Array in C#

    2 minute read

    Learn how to search for a target value in a rotated sorted array efficiently using binary search in C#.

    Find Minimum in Rotated Sorted Array in C#

    2 minute read

    Learn how to efficiently find the minimum element in a rotated sorted array using a modified binary search approach in C#.

    Solving Koko Eating Bananas in C#

    2 minute read

    Learn how to find the minimum eating speed for Koko using a Binary Search on Answer strategy in C#.

    • Follow:
    • GitHub
    • LinkedIn
    © 2026 Thomas Ngo.