585. Investments in 2016 | SQL | LeetCode Top 50 Series

Опубликовано: 13 Февраль 2025
на канале: SheCodes

LeetCode SQL Problem 585 | Investments in 2016 | SQL Tutorial & Explanation

In this video, we’ll solve LeetCode problem 585 titled "Investments in 2016." This medium-level SQL problem challenges us to find the sum of total investment values in 2016 (tiv_2016) for policyholders based on two specific conditions:

The policyholder shares the same total investment value in 2015 (tiv_2015) with one or more other policyholders.
The policyholder is located in a unique city, meaning their latitude and longitude (lat, lon) combination is different from others.
In this tutorial, we’ll:

Break down the problem step-by-step.
Write and explain an efficient SQL query to meet the conditions.
Use concepts like JOIN, GROUP BY, HAVING, and NOT EXISTS to filter results.
Round the final result to two decimal places using SQL’s ROUND() function.
Whether you're preparing for SQL interviews or sharpening your SQL skills, this video will help you understand how to tackle real-world data problems using SQL.

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