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GoodThought NGO has been a catalyst for positive change, focusing its efforts on education, healthcare, and sustainable development to make a significant difference in communities worldwide. With this mission, GoodThought has orchestrated an array of assignments aimed at uplifting underprivileged populations and fostering long-term growth.

This project offers a hands-on opportunity to explore how data-driven insights can direct and enhance these humanitarian efforts. In this project, you'll engage with the GoodThought PostgreSQL database, which encapsulates detailed records of assignments, funding, impacts, and donor activities from 2010 to 2023. This comprehensive dataset includes:

  • Assignments: Details about each project, including its name, duration (start and end dates), budget, geographical region, and the impact score.
  • Donations: Records of financial contributions, linked to specific donors and assignments, highlighting how financial support is allocated and utilized.
  • Donors: Information on individuals and organizations that fund GoodThought’s projects, including donor types.

Refer to the below ERD diagram for a visual representation of the relationships between these data tables:

You will execute SQL queries to answer two questions, as listed in the instructions. Good luck!

Spinner
DataFrameas
highest_donation_assignments
variable
-- highest_donation_assignments
WITH summarized_donation AS(
	SELECT dn.assignment_id,
		ROUND(SUM(dn.amount),2) AS rounded_total_donation_amount,
		dr.donor_type
	FROM donations AS dn 
	INNER JOIN donors AS dr
		ON dn.donor_id = dr.donor_id
	GROUP BY assignment_id, donor_type
)

SELECT a.assignment_name,
	a.region,
	sd.rounded_total_donation_amount,
	sd.donor_type
FROM assignments AS a
INNER JOIN summarized_donation AS sd
	ON a.assignment_id = sd.assignment_id
ORDER BY sd.rounded_total_donation_amount DESC
LIMIT 5;
Spinner
DataFrameas
top_regional_impact_assignments
variable
WITH assignments_with_donations AS (
    SELECT 
        assignment_id,
        COUNT(donation_id) AS num_total_donations
    FROM donations
    GROUP BY assignment_id
),
ranked_assignments AS (
    SELECT
        a.assignment_name,
        a.region,
        a.impact_score,
        ad.num_total_donations,
        ROW_NUMBER() OVER (PARTITION BY a.region ORDER BY a.impact_score DESC) AS rank
    FROM assignments AS a
    INNER JOIN assignments_with_donations AS ad
        ON a.assignment_id = ad.assignment_id
    WHERE ad.num_total_donations > 0
)
SELECT
    assignment_name,
    region,
    impact_score,
    num_total_donations
FROM ranked_assignments
WHERE rank = 1
ORDER BY region;